diff --git a/day12/inp b/day12/inp
index e69de29..86e9cac 100644
--- a/day12/inp
+++ b/day12/inp
@@ -0,0 +1,5 @@
+Sabqponm
+abcryxxl
+accszExk
+acctuvwj
+abdefghi
diff --git a/day12/input b/day12/input
index e69de29..d469653 100644
--- a/day12/input
+++ b/day12/input
@@ -0,0 +1,41 @@
+abcccaaaaaaccccccccaaaaaccccccaaaaaaccccccaaaaaaaacccaaaaaaaccaaaacccccccccccccccccccccccccaaaaaacccccccccccccccccccccccccccccaaaaaa
+abcccaaaaaacccccccaaaaaaccccaaaaaaaacccccccaaaaaaaaaaaaaaaaccaaaaacccccccccccccccccccccccccaaaaaacccccccccccccccccccccccccccccaaaaaa
+abccccaaaaacaaaccaaaaaaaacccaaaaaaaaacccccccaaaaaaaaaaaaaaaacaaaaaacccccccccaaacccccccccccaaaaaaaaccccccccccaaccccccccccccccccaaaaaa
+abccccaaaaccaaaaaaaaaaaaacccaaaaaaaaaacccccaaaaaaaaaaaaaaaaaaacaaaacccccccccaaaacccccccccaaaaaaaaaacccccccccaaaccccccccccccccccccaaa
+abcccccccccaaaaaacccaacccccccccaaacaaaccccccaacccccccaaaaaaaaacaacccccccccccaaaacccccccccaaaaaaaaaacccccccccaaaccacaaccccccccccccaaa
+abcccccccccaaaaaacccaacccccccccaaacccccccccccccccccccaaaacaaaacccccccaacaaccaaaccccccccccaccaaaaacacccccccccaaaacaaaaccccccccccccaac
+abccccccccccaaaaacccccccccccccccacccaaaacccccccccccccaaaacccccccccccccaaaacccccccccccaacccccaaaaccccccccjjjjaaaaaaaaaccccccccccccccc
+abccccccccccaaaacccccccccccccccccccaaaaacccccccccccccaaaccccccccccccccaaaaacccccccccaaaaaacccaaccccccccjjjjjjkkaaaacccccccccaacccccc
+abcccccaaccccccccccccccccccccccccccaaaaaacccccccccccccaacccccccccccccaaaaaaccccccccccaaaaaccccccccccccjjjjjjjkkkkaacccccaacaaacccccc
+abccaaaacccccccccccccccccccccccccccaaaaaaccccccccccccccccccccccccccccaaaacaccccccccaaaaaaaccccaacccccjjjjoooookkkkkkkklllaaaaaaacccc
+abccaaaaaacccccccccccccccccccccccccaaaaacccccccccccccccccccccccccccccccaaccccccccccaaaaaaaaccaaaaccccjjjoooooookkkkkkkllllaaaaaacccc
+abcccaaaaacccccccccccccccccccccccccccaaaccccccccaaaacccccccccccccccccccccccccccccccaaaaaaaaccaaaaccccjjooooooooppkkppplllllaccaacccc
+abccaaaaaccccccccccccaccccccccccccccccccccccccccaaaacccccccccccccccccccccccccccccccccaaacacccaaaacccijjooouuuuoppppppppplllccccccccc
+abcccccaacccccccccccaaaaaaaaccccccccccccccccccccaaaaccccaaccccccccaaacccccccccccccaacaaccccccccccccciijoouuuuuuppppppppplllcccaccccc
+abcccccccccccccccccccaaaaaaccccccccccccccccccccccaaccccaaaacccccccaaaaccccccccccaaaaaaccccccccccccciiiiootuuuuuupuuuvvpppllccccccccc
+abcccccccccccccccccccaaaaaaccaaaaacccccccccccccccccccccaaaacccccccaaaaccccccccccaaaaaaccccccccccccciiinnotuuxxxuuuuvvvpppllccccccccc
+abccccccccccccccacccaaaaaaaacaaaaaaacccccccccccccccccccaaaacccccccaaacccccaaaaccaaaaaccccaaccccccciiiinnnttxxxxuuyyyvvqqqllccccccccc
+abcccccccccccaaaaccaaaaaaaaaaaaaaaaaaccaacccccccccccccccccccccccccccccccccaaaacccaaaaaccaaacccccciiinnnnnttxxxxxyyyyvvqqqllccccccccc
+abaaaacccccccaaaaaaaaaaaaaaaaaaaaaaaaaaaacccccccccccccccccccccccccccccccccaaaacccaaaaaacaaaccccciiinnnnttttxxxxxyyyyvvqqmmmccccccccc
+abaaaaccccccccaaaaacccaaaaacaaaaaacaaaaaaccccccccccccccccaaccccccccccccccccaacccccccaaaaaaaaaaciiinnnnttttxxxxxyyyyvvqqqmmmccccccccc
+SbaaaacccccccaaaaaccccaaaaaccaaaaaaaaaaaccccccccccccccccaaacaacccccccccccccccccccccccaaaaaaaaachhhnnntttxxxEzzzzyyvvvqqqmmmccccccccc
+abaaaacccccccaacaacccccaaaaaaaacaaaaaaaaaccccccccccccccccaaaaaccccccccccccccccccccccccaaaaaaacchhhnnntttxxxxxyyyyyyvvvqqmmmdddcccccc
+abaaaacccccccccccccccccccaaaaaacaaaaaaaaaacccccccccccccaaaaaaccccccccaaaccccccccccccccaaaaaaccchhhnnntttxxxxywyyyyyyvvvqqmmmdddccccc
+abaacccccccccccccccccccaaaaaaacccccaaaaaaacccccccccccccaaaaaaaacccccaaaacccccccccccccaaaaaaacaahhhmmmttttxxwwyyyyyyyvvvqqmmmdddccccc
+abcccccccccccccccccccccaaaaaaacaaccaaacccccccccccccccccaacaaaaacccccaaaacccccccccccccaaacaaaaaahhhmmmmtsssswwyywwwwvvvvqqqmmdddccccc
+abcccccccccccccccaaaccccaaaaaaaaaacaaccaaccccccccccccccccaaacaccccccaaaacccccccccccccccccaaaaacahhhmmmmmsssswwywwwwwvvrrqqmmdddccccc
+abcccccccccccccaaaaaaccccaaaaaaaaaccaaaacccccccccccccccccaacccccccccccccccccccccccaaaccccaaaaaaahhhhhmmmmssswwwwwrrrrrrrrmmmmddccccc
+abcccccccccccccaaaaaaccccaaaaaaaaaaaaaaaaaccccccccccccccccccccccccccccccccccccccaaaaaacccccaaaaachhhhhmmmmsswwwwrrrrrrrrrkkmdddccccc
+abccccccccccccccaaaaaccccccaaaaaaaaaaaaaaaccccccccccccccccccccccccccccccccccccccaaaaaaccccaaaaacccchhggmmmssswwrrrrrkkkkkkkkdddacccc
+abccaaaacccccccaaaaacccccccccaaaaaacaaaaacccccccccccccccccccccccccccccccccccccccaaaaaaccccaacaaaccccggggmmsssssrrlkkkkkkkkkdddaccccc
+abccaaaacccccccaaaaacccccccccaaaaaaccccaacccccccccccccccccccccccccccccccccccccccaaaaaccccccccaaccccccgggmllssssrllkkkkkkkeeeddaccccc
+abccaaaacccccccaaacccccccccccaaaaaacccccccccccccccccccaacccccccccccccccccccccccaaaaaacccccccccccccccccggllllssslllkkeeeeeeeeeaaacccc
+abcccaaccccccccaaacaaaccccccaaaaaaaaaaacccccccccccccaaaaaacccccccccccccccccccccaaacaaacccccaacccccccccggglllllllllfeeeeeeeeaaaaacccc
+abccccccccccaaaaaaaaaaccccccccccccaccaaaccacccccccccaaaaaaccccaaccaacccaaccccccaaaaaaacccccaaccccccccccggglllllllfffeeecccaaaaaacccc
+abccccccccccaaaaaaaaacccccccccccccccaaaaaaaccccccccccaaaaaccccaaaaaacccaaaaaaccaaaaaacccaaaaaaaacccccccggggllllfffffccccccaacccccccc
+abcccccccccccaaaaaaacccccccccccccccccaaaaaaccaacccccaaaaaccccccaaaaacccaaaaaacaaaaaaacccaaaaaaaaccccccccgggffffffffccccccccccccccccc
+abccccccccccccaaaaaaacccccccccccccaaaaaaaaacaaaaccccaaaaacaaaaaaaaaacaaaaaaacaaaaaaaaaccccaaaacccccccccccggffffffacccccccccccccccaaa
+abccccccccccccaaaaaaacaaccccccccccaaaaaaaaacaaaacccccaaaaaaaaaaaaaaaaaaaaaaacaaaaaaaaaacccaaaaacccccccccccaffffaaaaccccccccccccccaaa
+abccccccccccccaaacaaaaaacccccccccccaaaaaaaacaaaaaaaaaaaaaaaaaaaaaaaaacaaaaaaacccaaacaaaccaaaaaacccccccccccccccccaaaccccccccccccccaaa
+abccccccccccccaaccaaaaaccccccccccccccaaaaaaaccccaaaaaaaaaaaaccccaacccccaaaaaacccaaaccccccaaccaacccccccccccccccccaaacccccccccccaaaaaa
+abcccccccccccccccaaaaaaaaccccccccccccaacccacccccccaaaaaaaaaaccccaacccccaaccccccccaccccccccccccccccccccccccccccccccccccccccccccaaaaaa
diff --git a/day12/main.py b/day12/main.py
new file mode 100644
index 0000000..709ac05
--- /dev/null
+++ b/day12/main.py
@@ -0,0 +1,53 @@
+import string
+from collections import defaultdict
+from pprint import pprint
+
+inputs = [x.strip() for x in open("input").readlines()]
+
+points = {}
+graph = defaultdict(list)
+start, starts, end = None, [], None
+for y, line in enumerate(inputs):
+    for x, letter in enumerate(line):
+        point = complex(x, y)
+        if letter == "S":
+            value = 0
+            start = point
+            starts.append(point)
+        elif letter == "a":
+            value = 0
+            starts.append(point)
+        elif letter == "E":
+            value = 25
+            end = point
+        else:
+            value = string.ascii_lowercase.index(letter)
+        points[point] = value
+
+for point in points:
+    for neighbor in [1 + 0j, -1 + 0j, 0 + 1j, 0 - 1j]:
+        if (point + neighbor) in points:
+            graph[point].append(point + neighbor)
+
+
+def dijkstra(graph, source):
+    Q = list(graph.keys())
+    dist = {v: float("inf") for v in graph}
+    dist[source] = 0
+
+    while Q:
+        u = min(Q, key=dist.get)
+        Q.remove(u)
+
+        for v in graph[u]:
+            alt = dist[u] + 1
+            if alt < dist[v] and points[u] - points[v] <= 1:
+                dist[v] = alt
+
+    return dist
+
+
+paths = dijkstra(graph, end)
+pprint(paths)
+print(paths[start])
+print(min(paths[s] for s in starts))
diff --git a/day12/solution.ts b/day12/solution.ts
index 1bf3911..58f7d63 100644
--- a/day12/solution.ts
+++ b/day12/solution.ts
@@ -7,8 +7,116 @@ var rows = fileString.split("\n");
 rows = rows.map(val => {
   return val.trim();
 });
+
 rows = rows.filter(val => {
   return val.length > 0;
 });
 
-console.log(rows);
+const grid = rows.map(val => {
+  return val.split("");
+})
+
+var targetPos = [0,0];
+for (var i = 0; i < grid.length; i++) {
+  for (var j = 0; j < grid[i].length; j++) {
+    if (grid[i][j] == "E") {
+      console.log("target set", i, j);
+      targetPos = [i, j];
+      grid[i][j] = "z";
+    }
+    if (grid[i][j] == "S") {
+      grid[i][j] = "a";
+    }
+  }
+}
+
+
+// Build Graph
+var graph: {} = {};
+for (var i = 0; i < grid.length; i++) {
+  for (var j = 0; j < grid[i].length; j++) {
+    const idx = JSON.stringify([i, j])
+    const height = grid[i][j].charCodeAt(0);
+    graph[idx] = {
+      "value": height,
+      "next": {}
+    };
+    if (!((i - 1) < 0)) {
+      if ((grid[i - 1][j].charCodeAt(0) - height <= 1) && (grid[i - 1][j].charCodeAt(0) - height >= -1)) {
+        const nidx = JSON.stringify([i - 1, j])
+        graph[idx]["next"][nidx] = 1;
+      }
+    }
+    if (!((i + 1) >= grid.length)) {
+      if ((grid[i + 1][j].charCodeAt(0) - height <= 1) && (grid[i + 1][j].charCodeAt(0) - height >= -1)) {
+        const nidx = JSON.stringify([i + 1, j])
+        graph[idx]["next"][nidx] = 1;
+      }
+    }
+    if (!((j - 1) < 0)) {
+      if ((grid[i][j - 1].charCodeAt(0) - height <= 1) && (grid[i][j - 1].charCodeAt(0) - height >= -1)) {
+        const nidx = JSON.stringify([i, j - 1])
+        graph[idx]["next"][nidx] = 1;
+      }
+    }
+    if (!((j + 1) >= grid[i].length)) {
+      if ((grid[i][j + 1].charCodeAt(0) - height <= 1) && (grid[i][j + 1].charCodeAt(0) - height >= -1)) {
+        const nidx = JSON.stringify([i, j + 1])
+        graph[idx]["next"][nidx] = 1;
+      }
+    }
+  }
+}
+
+function closestNode(distances: {}, visited) {
+  var shortest = null;
+  for (const node in distances) {
+    var curentShortest = shortest === null || distances[node] < distances[shortest];
+    if (curentShortest && !visited.includes(node)) {
+      shortest = node;
+    }
+  }
+  return shortest;
+}
+
+function findShortestPath(g:{}, startN: string, endN: string) {
+  var distances = {};
+  distances[endN] = Infinity;
+  distances = Object.assign(distances, g[startN]["next"]);
+
+  var parents = {endN: null};
+  for (const neighbor in g[startN]["next"]) {
+    parents[neighbor] = startN;
+  }
+
+  var visited = [];
+  var node = closestNode(distances, visited);
+  while (node) {
+    var distance = distances[node];
+    var children = g[node]["next"];
+    for (const child in children) {
+      if (child === startN) {
+        continue;
+      } else {
+        var newDistance = distance + children[child];
+        if (!distances[child] || distances[child] > newDistance) {
+          distances[child] = newDistance;
+          parents[child] = node;
+        }
+      }
+    }
+    visited.push(node);
+    node = closestNode(distances, visited);
+  }
+  var shortestPath = [endN];
+  var parent = parents[endN];
+  while (parent) {
+    shortestPath.push(parent);
+    parent = parents[parent];
+  }
+  shortestPath.reverse();
+  return {d: distances[endN], s: shortestPath, dd: distances}
+}
+const res = findShortestPath(graph, JSON.stringify([0,0]), JSON.stringify(targetPos))
+console.log(res["dd"], res["d"]);
+
diff --git a/day13/.gitignore b/day13/.gitignore
new file mode 100644
index 0000000..409c9e1
--- /dev/null
+++ b/day13/.gitignore
@@ -0,0 +1,86 @@
+node_modules/
+.node_modules/
+built/*
+tests/cases/rwc/*
+tests/cases/test262/*
+tests/cases/perf/*
+!tests/cases/webharness/compilerToString.js
+test-args.txt
+~*.docx
+\#*\#
+.\#*
+tests/baselines/local/*
+tests/baselines/local.old/*
+tests/services/baselines/local/*
+tests/baselines/prototyping/local/*
+tests/baselines/rwc/*
+tests/baselines/test262/*
+tests/baselines/reference/projectOutput/*
+tests/baselines/local/projectOutput/*
+tests/baselines/reference/testresults.tap
+tests/services/baselines/prototyping/local/*
+tests/services/browser/typescriptServices.js
+src/harness/*.js
+src/compiler/diagnosticInformationMap.generated.ts
+src/compiler/diagnosticMessages.generated.json
+src/parser/diagnosticInformationMap.generated.ts
+src/parser/diagnosticMessages.generated.json
+rwc-report.html
+*.swp
+build.json
+*.actual
+tests/webTestServer.js
+tests/webTestServer.js.map
+tests/webhost/*.d.ts
+tests/webhost/webtsc.js
+tests/cases/**/*.js
+!tests/cases/docker/*.js/
+tests/cases/**/*.js.map
+*.config
+scripts/eslint/built/
+scripts/debug.bat
+scripts/run.bat
+scripts/**/*.js
+scripts/**/*.js.map
+coverage/
+internal/
+**/.DS_Store
+.settings
+**/.vs
+**/.vscode/*
+!**/.vscode/tasks.json
+!**/.vscode/settings.template.json
+!**/.vscode/launch.template.json
+!**/.vscode/extensions.json
+!tests/cases/projects/projectOption/**/node_modules
+!tests/cases/projects/NodeModulesSearch/**/*
+!tests/baselines/reference/project/nodeModules*/**/*
+.idea
+yarn.lock
+yarn-error.log
+.parallelperf.*
+tests/cases/user/*/package-lock.json
+tests/cases/user/*/node_modules/
+tests/cases/user/*/**/*.js
+tests/cases/user/*/**/*.js.map
+tests/cases/user/*/**/*.d.ts
+!tests/cases/user/zone.js/
+!tests/cases/user/bignumber.js/
+!tests/cases/user/discord.js/
+tests/baselines/reference/dt
+.failed-tests
+TEST-results.xml
+package-lock.json
+tests/cases/user/npm/npm
+tests/cases/user/TypeScript-React-Starter/TypeScript-React-Starter
+tests/cases/user/TypeScript-Node-Starter/TypeScript-Node-Starter
+tests/cases/user/TypeScript-React-Native-Starter/TypeScript-React-Native-Starter
+tests/cases/user/TypeScript-Vue-Starter/TypeScript-Vue-Starter
+tests/cases/user/TypeScript-WeChat-Starter/TypeScript-WeChat-Starter
+tests/cases/user/create-react-app/create-react-app
+tests/cases/user/fp-ts/fp-ts
+tests/cases/user/webpack/webpack
+tests/cases/user/puppeteer/puppeteer
+tests/cases/user/axios-src/axios-src
+tests/cases/user/prettier/prettier
+.eslintcache
diff --git a/day13/d13-p1.py b/day13/d13-p1.py
new file mode 100644
index 0000000..bdb37f8
--- /dev/null
+++ b/day13/d13-p1.py
@@ -0,0 +1,69 @@
+import json
+
+def test(leftside, rightside):
+    if isinstance(leftside, int) and isinstance(rightside, list):
+        leftside = [leftside]
+    elif isinstance(leftside, list) and isinstance(rightside, int):
+        rightside = [rightside]
+    if isinstance(leftside, int):
+        if leftside < rightside:
+            return True
+        elif rightside < leftside:
+            return False
+        else:
+            return None
+    else:
+        leftlen = len(leftside)
+        rightlen = len(rightside)
+        if leftlen <= rightlen:
+            minlen = leftlen
+        else:
+            minlen = rightlen
+        for i in range(minlen):
+            result = test(leftside[i], rightside[i])
+            if result != None:
+                return result
+        if leftlen > minlen:
+            return False
+        elif rightlen > minlen:
+            return True
+        else:
+            return None
+
+def checkpair(pairno, pair):
+    if len(pair) == 2:
+        leftside = pair[0]
+        rightside = pair[1]
+        if test(leftside, rightside):
+            print(pairno, pair)
+            return pairno
+        else:
+            print(pairno, pair)
+            return 0             
+    else:
+        print(pairno, pair)
+        return 0
+
+def process(filename):
+    result = 0
+
+    with open(filename) as infile:
+        filedata = infile.readlines()
+
+        pair = []
+        pairno = 1
+
+        for line in filedata:
+            line = line.rstrip()
+            if (line != ''):
+                pair.append(json.loads(line))
+            else:
+                result += checkpair(pairno, pair)
+                pair = []
+                pairno += 1
+        result += checkpair(pairno, pair)
+
+    return result
+
+result = process('input')
+print(result)
diff --git a/day13/day13.py b/day13/day13.py
new file mode 100644
index 0000000..a6c1a27
--- /dev/null
+++ b/day13/day13.py
@@ -0,0 +1,50 @@
+from functools import cmp_to_key
+
+DEFAULT_INPUT = 'day13.txt'
+
+def part_1(loc: str = DEFAULT_INPUT) -> int:
+    with open(loc) as f:
+        pairs = [packets.split('\n') for packets in f.read().split('\n\n')]
+    for pair in pairs:
+        pair[0] = eval(pair[0])
+        pair[1] = eval(pair[1])
+    return sum(i + 1 for i, pair in enumerate(pairs) if in_order(*pair) == -1)
+
+def in_order(left: list, right: list) -> int:
+    i = 0
+    while True:
+        if i == len(left) == len(right):
+            return 0
+        if i == len(left):
+            return -1
+        if i == len(right):
+            return 1
+        left_current = left[i]
+        right_current = right[i]
+        if isinstance(left_current, int) and isinstance(right_current, int):
+            if left_current == right_current:
+                i += 1
+            else:
+                return -1 if left_current < right_current else 1
+        else:
+            if isinstance(left_current, int):
+                left_current = [left_current]
+            if isinstance(right_current, int):
+                right_current = [right_current]
+            correct_order = in_order(left_current, right_current)
+            if correct_order in (1, -1):
+                return correct_order
+            i += 1
+    
+def part_2(loc: str = DEFAULT_INPUT) -> int:
+    with open(loc) as f:
+        lines = [eval(line.strip()) for line in f.readlines() if line != '\n']
+    lines.append([[2]])
+    lines.append([[6]])
+    lines.sort(key=cmp_to_key(in_order))
+    return (lines.index([[2]]) + 1) * (lines.index([[6]]) + 1)
+
+    
+if __name__ == '__main__':
+    print('Solution for Part One:', part_1())
+    print('Solution for Part Two:', part_2())
diff --git a/day13/day13.txt b/day13/day13.txt
new file mode 100644
index 0000000..af73fbb
--- /dev/null
+++ b/day13/day13.txt
@@ -0,0 +1,23 @@
+[1,1,3,1,1]
+[1,1,5,1,1]
+
+[[1],[2,3,4]]
+[[1],4]
+
+[9]
+[[8,7,6]]
+
+[[4,4],4,4]
+[[4,4],4,4,4]
+
+[7,7,7,7]
+[7,7,7]
+
+[]
+[3]
+
+[[[]]]
+[[]]
+
+[1,[2,[3,[4,[5,6,7]]]],8,9]
+[1,[2,[3,[4,[5,6,0]]]],8,9]
diff --git a/day13/inp b/day13/inp
new file mode 100644
index 0000000..af73fbb
--- /dev/null
+++ b/day13/inp
@@ -0,0 +1,23 @@
+[1,1,3,1,1]
+[1,1,5,1,1]
+
+[[1],[2,3,4]]
+[[1],4]
+
+[9]
+[[8,7,6]]
+
+[[4,4],4,4]
+[[4,4],4,4,4]
+
+[7,7,7,7]
+[7,7,7]
+
+[]
+[3]
+
+[[[]]]
+[[]]
+
+[1,[2,[3,[4,[5,6,7]]]],8,9]
+[1,[2,[3,[4,[5,6,0]]]],8,9]
diff --git a/day13/input b/day13/input
new file mode 100644
index 0000000..0d60fbd
--- /dev/null
+++ b/day13/input
@@ -0,0 +1,449 @@
+[[[[],[7,10,6,5],[],[8]],0,1,[[8,10]],4],[[[4,0,3,2,0]],7],[[],3,[[0,2],8,5],[],[[2,10,4,6]]],[3],[5,[1,[8,0],10,1,[4,3,9,9]],1]]
+[[0,2,7],[],[10,[[0,7,3,6]]],[2,[8],3]]
+
+[[],[[0,8,[],[0,8,6,7,10]],4,10,[[],9,[1],4,10],3],[[7,1,0],10,[[1,10,7,8],[3,7],[3,6],5],1,0],[9],[2,9,[[0,6,3]],[[7]],2]]
+[[[],0,[[4,5,10],8]],[0,5],[[[1,8,8,8],2],0,[7,9],3]]
+
+[[3,[[10,2,8],3,0,[2,1],7]],[[[1,9,5,5,8],1,9,[9,2,4,5]],2,1,[[],[4,3],3]],[],[7,[6,4,[7,0,5]],[],[8],1]]
+[[3],[],[[4,4],[[5,4,3],10,[1,3,9],9],3,1],[6,[0,[9,0,1,1,1]]],[]]
+
+[[4,0],[[[5,7,10,9],[1,8,0,3],[10]],9,10,[]],[5,[[1,3],5,3,[],[4,8,0,2,5]],0]]
+[[8,0,[],[[7,5,4,6,3],0,[9,4,8],0,6]],[1,3,9],[2,[[],5,8,8,8]],[[[6,5],4,[3,3],[4,0],0]]]
+
+[[],[2,[[3,0,5]]],[1,[7],[0,[10,3,9],10,[8,2,4,2,2],[5]],[[0,2,3,1],3,[8,6,0],2,[]]],[[[3,1,3,7,2],6,0,[3],7],[[7,2,4,10],[6,8,10,0,2]],5]]
+[[],[9,[5,8,0,[3,10]],10],[6,6,9,0,[[4,8,5,2],[1,10,1,7,0]]]]
+
+[[7],[0,[2],3],[1,0],[[],2],[1,[[6],[4,3,10,2,5],[6,9,3,3,0],[8,5],10],[]]]
+[[],[[1,[5,1,7,9,6],[],[4,7,9,10,10]],7,1,[4,4,[3],[2],9]],[8],[[[5],[5,6],6,5],[]],[9,9,6,9,10]]
+
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+
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+
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+
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+
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diff --git a/day13/package.json b/day13/package.json
new file mode 100644
index 0000000..29c5523
--- /dev/null
+++ b/day13/package.json
@@ -0,0 +1,5 @@
+{
+  "devDependencies": {
+    "@types/node": "^18.11.10"
+  }
+}
diff --git a/day13/solution.ts b/day13/solution.ts
new file mode 100644
index 0000000..d94d6d6
--- /dev/null
+++ b/day13/solution.ts
@@ -0,0 +1,88 @@
+import { readFileSync } from 'fs';
+import { join } from 'path';
+
+const fileString = readFileSync(join(__dirname, "input"), 'utf-8');
+var rows = fileString.split("\n\n");
+
+rows = rows.map(val => {
+  return val.trim();
+});
+rows = rows.filter(val => {
+  return val.length > 0;
+});
+
+var inputs = rows.map(val => {
+  return val.split("\n").map(vval => {
+    return eval(vval);
+  });
+});
+
+function compareVals(left, right, d): number {
+  if (right == undefined) {
+    return -1;
+  }
+  if (left == undefined) {
+    return 1;
+  }
+  const itemLTp = typeof left;
+  const itemRTp = typeof right;
+  if ((itemLTp == "number") && (itemRTp =="number")) {
+    console.log("- Compare ".padStart(d, "-"), left, " vs ", right)
+    if (left < right) {
+      return 1;
+    }
+    if (left > right) {
+      return -1;
+    }
+    return 0;
+  } else if ((itemLTp == "object") && (itemRTp =="object")) {
+      console.log("- Compare ".padStart(d, "-"), left, " vs ", right)
+      for (var j = 0; j < Math.max(left.length, right.length); j++) {
+        const ret = compareVals(left[j], right[j], d+1);
+        if (ret != 0) {
+          return ret;
+        }
+      }
+      return 0;
+  } else {
+    console.log("- Compare ".padStart(d, "-"), left, " vs ", right)
+    var nItemL = null;
+    var nItemR = null;
+    if (itemLTp == "number") {
+      nItemL = [left]
+    } else {
+      nItemL = left
+    }
+    if (itemRTp == "number") {
+      nItemR = [right]
+    } else {
+      nItemR = right
+    }
+    for (var j = 0; j < Math.max(nItemL.length, nItemR.length); j++) {
+      const ret = compareVals(nItemL[j], nItemR[j], d+1);
+      if (ret != 0) {
+        return ret;
+      }
+    }
+  }
+  return 0;
+}
+
+var res = [];
+for (var p = 0; p < inputs.length; p++) {
+  console.log("== Pair ", p, " ==")
+  const v = compareVals(inputs[p][0], inputs[p][1], 0);
+  res.push(v);
+}
+
+console.log(res);
+
+var sum = 0;
+for (var i = 0; i < res.length; i++) {
+  if (res[i] == 1) {
+    sum += (i + 1);
+  }
+}
+
+console.log(sum);
+
diff --git a/day13/tsconfig.json b/day13/tsconfig.json
new file mode 100644
index 0000000..80c821c
--- /dev/null
+++ b/day13/tsconfig.json
@@ -0,0 +1,7 @@
+{
+  "compilerOptions": {
+    "types": [
+      "node"
+    ]
+  }
+}