diff --git a/13/13.py b/13/13.py
new file mode 100644
index 0000000..6a271b1
--- /dev/null
+++ b/13/13.py
@@ -0,0 +1,59 @@
+
+with open('input') as file:
+    packets = list(tuple(map(eval, x.split('\n'))) for x in file.read().strip().split('\n\n'))
+
+
+def is_int(x):
+    return isinstance(x, int)
+def is_list(x):
+    return isinstance(x, list)
+
+def compare_packets(l, r):
+    def compare(left, right):
+        nonlocal result, done
+        if not done:
+            if is_int(left) and is_int(right):
+                if left>right:
+                    result = False
+                    done = True
+                elif left<right:
+                    result = True
+                    done = True
+            elif is_list(left) and is_list(right):
+                for l, r in zip(left, right):
+                    compare(l, r)
+                    if done:
+                        break
+                else:
+                    if len(right)<len(left):
+                        result = False
+                        done = True
+                    elif len(left)<len(right):
+                        result = True
+                        done = True
+            elif is_int(left):
+                compare([left], right)
+            else:
+                compare(left, [right])
+    result = None
+    done = False
+    compare(l, r)
+    return result
+
+print(sum(i for i, (l, r) in enumerate(packets, 1) if compare_packets(l, r)))
+packets = [x for y in packets for x in y] + [[[2]], [[6]]]
+
+for i in range(len(packets)):
+    for j in range(len(packets)-1):
+        if not compare_packets(packets[j], packets[j+1]):
+            packets[j], packets[j+1] = packets[j+1], packets[j]
+a = -1
+b = -1
+for i in range(len(packets)):
+    if packets[i]==[[2]]:
+        a = i+1
+    if packets[i]==[[6]]:
+        b = i+1
+print(a*b)
+
+
diff --git a/13/input b/13/input
new file mode 100644
index 0000000..aa4ec06
--- /dev/null
+++ b/13/input
@@ -0,0 +1,449 @@
+[[[[3,10,1,1],[0],[4]],10,[[1,4,1],7,10],[[2,3],[4,10,6,6]],9],[[6,[3,1,4,0,0]],5,8,0],[10,10,7,[[],[0,8],[7,6,4]],[[0,7,2,1,2],7,2,[6,0],[7,6,4,6]]]]
+[[],[],[9,[8,[],1]],[1,5],[[],[]]]
+
+[[[[7],8,[6,6]],9,[0,1],[[7,2]],[]]]
+[[[]],[[[7,4,0,10,9],[3,2,10,6,0]],9,[[7,2,0],[5,7,8],[0,7,4,2],[0,1,3,7]],3,8],[]]
+
+[[],[[[0,3,2,6],7],8,5,5],[1],[[6,6,10,10],9,[[9,1],[6,0,2,10],[0,7,1,1,2]],[0,[],[8,6,5,6],[9,8,6],8]],[0,[],[[],[7,10,10]]]]
+[[2,[[9,2,7],2,[4,8,5],4],0,[[7,4,0,9],3]]]
+
+[[[[1,9,9,1,10],8,1,[],[6,7,9,10]],6,[0,1,9],10],[[9,5,[0,2],7,[8,2]],[1]],[2,6,[[10,6],9,7]],[[[6,7,5,1]],[],0],[]]
+[[[],[8,[6,7],[1,3,7,1,6],6,[]],3],[1,9]]
+
+[[3,3],[[3,8],4,[3,[9,0,6,9],2],5],[],[],[]]
+[[],[2,[1,[6,5,9,1],[6],6],[[7,8,7],[5,4],[9,4,3,0,6],[],[]]],[],[10,[[],7,0,2],4,9]]
+
+[[4],[[],[[4],9],[]]]
+[[[]],[]]
+
+[[[[0,3,4],[],[6,9,5],7]],[]]
+[[8,6,[5],8,2],[[[6,9,8,0],0,[10,0,6,8,5],[],[]],10,[[0,2,10,0],9,[8,1],[7,7,10]],[8],[[1,7,10,5],6]],[[0,[4,9,7,9]],10,[2,[],9]]]
+
+[[5,8,1,3,6],[[6,[1,1,8],5],6,[3,5,[3,3,4,6,5],3,1]],[[10,[7,1,8,3],8,[9,9,9],[4,2,8]],[6,4,[3,1,2,8,7],6],[6,[3],[0,0,9,2],[1],8],[4,[8,5,3,10],[8,7,3,5,7],1,6]],[[[5,2,7,6],6,2]]]
+[[[10],10,[]],[],[7,[[0,9,7,10,2]],[[7],1,6,10,[9]]]]
+
+[[],[0,[[1,9],3,[],3,[3]]],[9,[[3,9,8,4],10,[8,1,3]]],[[[],[4,4,8,6,8],5],[[2,2,9],[8,2,0]],[6,7],4],[[],10]]
+[[[],[[3,2,2,8,9],[4],7,0],0,[9,[2,3,0,9]],8],[[1,0],[7,[7,4,3,4],2,[1,1,1,3],[4,10]],10,5],[],[]]
+
+[[[[],[]],1],[[6,2,[9,8,1,2,0],[]],[]],[[1,[9,7,0,7,3],[4,1,9,6],[8,4,10],9],[7,[1,4,3,4]],0,1],[],[]]
+[[[9,8],[5,4,9,1],[[0],[2,10]],[8],[10,0]],[[[],9,1,[5,5,4,6]]]]
+
+[[[1],4,[4,[9,0,3],2],[],6],[],[],[],[9,2,3,1,7]]
+[[4,1,[2,[6]],10],[],[[9],6,[0],9],[[6,[5,1,9,10],9],5],[]]
+
+[[2,8,[[1],[5,8],[4]]],[2,2,[[4,10,4,3,4],[1],4,[]],7,[8]],[4,[]]]
+[[[]],[4,4],[0]]
+
+[[[6,1,[7,2,8,5,2]],6,[[3,5,1,6],[2,8,0,9],[7,9,5,6,3],[8],[10,1,7]]],[2,9,5],[[],[],6]]
+[[[8],[6,9,6,[3]]],[[[10,6,3],[7,3],[0,6],[]],6]]
+
+[[],[[[4,2,8,3,4],[1,10]],[[7,9,0,0],8]],[[5,2,[6,8,10],8],[7,[1,9,3],0,[]],4],[[0,9,[],[5,0,10],3],[7,7,[5,6,6,5,7]]],[5,6]]
+[[[5,[6,6,4],1],[0,3,5],[[9,0,7]]]]
+
+[[[4,[3,6,5,10,0],[8,4,6,8],2,4],1,[1,2,7,4],[[3,10],[5],[3]]],[[0,[5]],[[],[8],2,8],1,[10,10,0],[]],[[4],0],[[7],9],[10,[]]]
+[[[[],[5,2,8,4,10],2],0,[[6,7,9,7,5],[2,5,8,7],10,0],1,[1]],[7,[]]]
+
+[[[8,[8,4,5]],3,1]]
+[[[],9,1],[[[10,2,4],6,[10,6,0,5],4,[]],[0],[[2,8,5,5,7]],8]]
+
+[[[[6],[2,4,4],[6,8,0,7]],0,[7,1,8,[3,0,5]]],[[[],7,[5,3,9],[8,0]],8,9]]
+[[10,1,[[4,0,6,4],[2]]],[7,7,3,[],[0]],[7,0]]
+
+[[4,[],10]]
+[[[[],[9,5,3,9,4],6,10,[6]],6,1,[[1,1,9],1,7,[5,1]]],[9,[[9,9],[1,0,4,6,9],[]],[],9],[[9,[8,2,2,7,9]],9]]
+
+[4,10,4,2,10]
+[4,10,4,2]
+
+[[[[]],8,0],[[9,0,[9,10,6]],[],7]]
+[[6,5,[6],1,[[4,7,10,2,8],7,3,[8,3,5,10]]]]
+
+[[[0,[2,3],[],[1],[]],4,[[],[1,7,9],[6],[6,4,8,3]],[[9,3,7,9]],[[5,0,1,9,0],[6,2,9]]],[[0,[4,1]],5],[],[]]
+[[[5]],[1,[[9,2,8],[4,1,4,4]]]]
+
+[[],[7],[]]
+[[7,[[10],5,[3],4,2],9,4],[[[8,8],[3,2,3,10,0]],3,0,[2],9]]
+
+[[[6,0,[],[0,5]],[],8,1],[],[5,2],[3,[6,[0,9,4],8,6,[]],9],[1,5,1,6,[2,0,8]]]
+[[[0],9],[[[3,9,2],[0],[9,10,1,4,6]]]]
+
+[[3,[[4,4,10,5],5,[9,6,10,9],9],4,[]],[[[6,4],1,[]]],[[[],[10,4],1],[7,9,[2,6],7,8]]]
+[[5,2,[[0,0],0,2],7,8],[0,1],[[[1],[10,0]],[[],5],1,[[9,8,9,5],6,[5,10,2,3,5]],9],[7,5,3,[8,1,[7,7],2,4],4]]
+
+[[],[[[],7]]]
+[[[[8]],[[4,4,10,8],[7],[2,8,1]]],[],[],[9,8,[[7,8,2,5,1],[1,1]],6,3],[1,[[]],[[7,2],[6,3,5,0,2],7,2],[[9,3,10],[6,4,4],6,[10,4],0]]]
+
+[[4,7,8],[[1,[4,6,1,2],[],[],0],9,6,8,[4,1]]]
+[[9,2],[7,[[5,2,9],[9,4,4,2,10]],0]]
+
+[[4,[[5,9,0],[0,10,4,4,4],[9,2,4],2,3],[],[5],3],[[[7,1,9,2],[0,7,9,8]],[[],[8,2],0,8],[3,2],[[],[],3],6],[6,[[4],[7],[1],[2,9]],2],[[9],[]],[5,[0],[4,[]]]]
+[[[[10,0],10,7],1,[2]],[7,[6,8,2,[9,6,10,1],8]],[],[6],[[],[4,[1,2],7]]]
+
+[[],[7]]
+[[[[2],2,[4,3,9,9,7],6],[7,10,6,[9,1,4,3,10]],[8,[9,7],7,[3,10,3,9]],2]]
+
+[[[0],1],[6],[10],[],[6]]
+[[],[[[9,5,10,6,3],7,10],6],[0,7,0,8],[5,[[10,3],7]]]
+
+[[],[[[4,1,9,7,1],4,[2,4,4],[6,8,4,5,1],[4,8,4,3,3]],10,[],9],[6,[5],[[],[8,4,3,10],[5,3,0,8,4]]],[[[4,2,2],10,1,[6,0,8]],[[3,10],0,0,[7,3,3],[0,1,0,2,0]]],[]]
+[]
+
+[[[]],[[7,7,0,[4,0,7,4],[7]],[[6],8,[0,4,4,10]],[10,7,[9,9,10,0,0]]]]
+[[6,[],7],[[7,7,[7]],[7,4,0],6,[[0,6,9,4,2]],[[7,6,6,6,1],[9,8,10],[0],[7,10,3]]]]
+
+[[4],[[[8,4,9,4],6],2,[4,[6,2,9],6,[0]],[4,6,[]],[1]],[[5],[],[[6,2],9,0,6],9],[],[]]
+[[5,2,1],[[10,[2],2,[2,0,7,6,6],0]],[[[3,0,10,3],8,6,1,[]]],[3],[]]
+
+[[4,[6]],[4,7,[[0,7,4,10,1],[],[10,4,7,6,6],0,1],8],[0,7,[[]]]]
+[[[[6,1],5,10],[9],3,4,[[6,1,9,1,6],6]],[10,1,7,9,7],[[4,[3,9,10],2],[9,[8,2,0,7]],[[1,9],[10,3,5,2,5]],9],[],[1,2,4,2,[2,[6,4,2,4,8],10,4]]]
+
+[[[],3,[[2,2,7,4,7],1]],[6],[[1,[9]],[[3,6,10,2,0],[10,3,0,6,1],8,7],[[3,7,5,9],5,1]],[0]]
+[[[]],[],[],[1,1,6,[[8,0,5,9,10],6],8]]
+
+[[[1,[0,3],[4,8]]],[[3,7,[8],10,9],[],[7]]]
+[[[[3,7,6],[9,5,1],[3,3,7],[4,9]],2],[8,4,0,[0,2]],[8,[[7,2],9,[]],[[0],3,7,[4,6],[10,1]],8],[[]]]
+
+[[[2,4,5,[],2],[[10]],1],[],[]]
+[[1,[4],[10,[8,4,9,7,3],[]],[0,[],8]]]
+
+[[[],9,[[0,10,0,0,5],[3,4],5,10],[[3,5,9,7,9],[9],[9]],8]]
+[[10,[[3,1,8],[3,2],[6,0],2,5],6,[[2,7,4,0,7],[9,7,3,10,7],[9,4,4,7],6,10]]]
+
+[[[[7,2],6,0,[9,10,3,0,8],8],7,[[1,5],6,[5,7,6,2],[10,6]],[[1,8,0],8],[[],[3,9,10,3],[]]],[[[9,7],10,[6,9,0],[6,2,7,8,3],2],3,[[6,1,2,1],0,2],8,4],[8,[],[3,[5,7,2,1]],[2],0]]
+[[[8,[8,2,10],5,8],2,[[1,0,3,4],6,[10,10],5],[3]],[],[[10],9,8,0],[7,[],[[2]],1,7],[[2,[6,10,4,1],7,[2,3,8]]]]
+
+[[9,10]]
+[[3,8],[[[7,7,2],5,5],[8,6,[4,7,10,10,4],0],9,[3,7]],[[[],[6],[5]],[[2,0,3,8,6],[3,5,8],2,[7,8,0,6,9]],[[3,4,4,3]],7,[[8,5,5,5,3],[5,8,6],3,6]],[[[10,6,2,10],1],[[0,5,0,6],7,10,3,[]],5,1]]
+
+[[5,[[3,5]]],[7],[5,0],[[],4,8,4,7],[[10,1,0],[[0,9],1,0,4,[0,5,1]],[[],[5,6,9],1,[5],[]],[[4,4,5,6,9],[1,9,6],7,2,5],[8,3]]]
+[[],[2,2]]
+
+[[[[1,5,5],[9,2,6,9,0],[10],2],1,8,3,10],[[],7,[6,5,[9,10,7,4],7],[]],[3,4]]
+[[7,[[6,3,6,3,9],[5,7,6,5],[10,5],[2,4,7],3]],[],[]]
+
+[[[[10,6],[4,8,7,3,1],8,3],6,[9],[10,[6],3,0,8],[5]],[],[[4,[6,0,9,1,10],[2,1,5],[6]],1],[],[[4,[4,7,10,7,9]],[[5],[6,6,2,5]],[[6,2,1,8],2,[6],[2,9,10],[8,5,5]],[1,[1,1,6,5,4]]]]
+[[[[7,8,1,0,5]],[[10,9,7],[1,5,1,2],[6,5,8,10,10]],[[1,0,5,1],[10,3,4,4,2],8,6],4],[3,1,[2,[],[1,10],2,[1,7,4,4]],8,4],[7,5,[[1,8,6,7],8,[3]],9,[[1,8,9],[],[],[10,0],[8]]],[[[8,1],[3,1,5,0],[8],[],6],6,4,0],[[[6,9,10],[3,10,6,7,9],[],5,[4,8,3]]]]
+
+[[3,[5,5,[6]]]]
+[[5],[0],[6,7,6,[9,7,5]],[[[4,5,2,7,10]],[3,10],[[9,9,2,5],0,[8,5,9,5,9],0,[9]],2]]
+
+[[[[]],[[5,0,6,9]],7],[9,1,2,[3,6],[[],9,8,1,[7,6,10,2,6]]],[[7,[10,0,8],6,[5],[1]],10,[1],[9,[7,6,2,6,8]],[[4,8,4],[1,10,8,3,7],3,0,[]]]]
+[[[7,8,3,[]],9],[]]
+
+[5,7,4,4]
+[5,7,4,4,1]
+
+[[],[0],[],[1,1,[6,[]],1,[4,[6,10,9,2,2]]]]
+[[[9],5,5,[]]]
+
+[[[[3,7,10],2,2,[6,9,0,3],[1,9,3,9]],0,9,[[5,1,1],10,[8,10],[]]]]
+[[[4,[8],[0,2,8],[9,8,2]],[[6,2,3],0,10],5]]
+
+[[8,1,9],[[[],[]],7,[[1,2,3],6,2,4]],[8,[[6,1],4,2,6]],[[[1,0,6,3],7,4,[10,5,8,9,0],10],[1],[8,10,[8,4,6,6,6],1],9,9]]
+[[6,6,7],[[5,5,[1,0,4],[6,4,1]],[7,2,8]],[[[1,7,1,2],[2],[5,10,5]],9,[3,[5,3,7,7],[10,7,2,7],[6]],8,3]]
+
+[[[4,1,2],[2,[0],1,[4,4,6],[]],5,1],[],[2,[[0,9,2,6],8,[0,1,0,3]],3],[],[[10,[4],3,[5,0,3,9],[4]],[],1,[[8,5,1,2]]]]
+[[[[1,6,2,4,8],6,1,9,[2,2]],[9],0,8]]
+
+[[[2,[9,10,10],[9,0,7,2],[7],1],6]]
+[[[[],10,8],1],[7,[[9,2],8,1],[[5,4,0,0,2],3]],[7,9]]
+
+[[[[4,1,10],9,[9,8,9],[5,2,0,5],[5,5,10]],[],0,[3,9,[5,4,7]]],[[[0,10,8,6],[],[1,4]],2,6,4],[7,[[1,8,5,10,6],5,[5,10,4,0,0]],[3,[]],[0,[2],6]],[0,0,[],[7,9,1]],[[],[9,2],[[]],[9,0,[1,9,4],8,[9,0,5,5,9]],[2,7,[7,0,1,8,1]]]]
+[[[],[1,3,6,1,4],[[5,10],2],0],[]]
+
+[[],[[[0,7,9,9],[9,1,3],[3,3,8,10,3],[9,8],7],4],[[],4,8],[[],[[1],[0,3],[],8,[10,0,5,8,10]],[[3,1,2,2,3],[7,4,10,4],[]],[[3,3,0],[4,7,1,5],0,[8,2,3,2,5]],4]]
+[[[]],[[10,[9],[6,8,8,2,6],[9,3],6]]]
+
+[[[10,9,[10],2]],[10,1,[10,4,2]],[2,9,0,[[2,7,0,7,8],[5],2,6,[1,7,6]]],[9,[7,[],[]],9,[[8,8],6]],[[10,4,10],[[9,3]],[[4,1,6,10]],4,[2]]]
+[[2,6,0,[4,3],10]]
+
+[[],[[[7,1,3,9,2],[8,10,4],2]],[]]
+[[6,6,[6,[],[10,1,1],[7],[]],[8]],[[5,6,1,[6],5],7],[[[1,3,3,1,9],0]]]
+
+[[],[9,9,[2,[1,9,1,3,0]],[2],1]]
+[[[[6,4,8,9],1,8,4],10],[[[],1,2,4],[9,[7,8]],6,9,[[4,2,1,8,5]]]]
+
+[[[[7,1,2,2]],8,[10],9]]
+[[9,[7,[6,3,6,10],5,[0]],[[],8],10],[9,[]],[4,[9,[10]],7],[9,7,[]]]
+
+[[8,[[5,3,5,7,3],[6,5],0],[[2,3],[7,2,7],[]]],[[8,[5,0],[5],[1]]],[[6,[],[]],[],3,[5,6,10,1,[]],[3,8,[5,1],5]],[],[[],4]]
+[[4,7,[7,8],[7]],[6,[5],3,[5,0,5,[7,0,5,4,4],0]],[[2,[9,9],3]],[9,[[4,7],10,[0,5]],[1],4,[9,3,[5,5,9],[1,1],[8,10,10,10,5]]]]
+
+[[6,[0,9,3,1,8],[[2,10,7,5],2],[[9,8,9,6],1,0]],[[[1,3,10,4],2,5,0,[7]],[7,6],0,[],[[8,7,4],5,3,[]]],[6],[3,[[10,9,10,7],[7,10],1,[3],2]],[7,2,9]]
+[[[1,9],[[5,3,0,8,3],4,0],4],[4,[[9,4,8,3,7],7,10,1,[9,9,0,6,9]],[[9,4,3,7],[],9,[4,3,8,4,8]],[]],[[[],[10,6],[8,10],[],[]],[[],6,[7,0,9,0,1]],[[2,5,4],2,[4]],3],[[[10,4,0],6],[1,[0,4,2,6],9,4,5],8,[[7,9,5,0],[],[],[7],[9]]]]
+
+[[],[5,9,5,8,2],[6],[[8,[1,8,2],[6,3],0],[2,[10,3,2,10,0]],[[9,3,7],[3,3,6]],8,[1,[3,2],9,[3,0,1,1]]],[2,[[2,3,5,0],8]]]
+[[[[1,8,4,10]],4]]
+
+[[2,[9,8,[6]]],[[[5,6],[9,9,0,2],[0,7,10,9,8],2,[2,7,2]]],[[[],4,[3,2,8],5]],[8]]
+[[10,9]]
+
+[[],[[10,[],7]]]
+[[[5,1],[4,[2,7,9,10],[3],0],0],[[[3],[],[4,9,7],[10,3,0]],[[1],2,3,5,[0,5,8,3]],4,[9,3]]]
+
+[[5],[4,0],[[[1,1,2,9,5],[4],[7]],[[9,1,7,6]],0,[]]]
+[[5,[10],0,[7,[2,10,8],[10,4,5,0,8]]],[[[8,8,4,10],[0,0,0,8,6],[]],8,6,[[5,0,0,1,1],6,[10,7]]]]
+
+[[[0,5,1,[]],[],6],[[7,6,[1,8,2,7,10]],[4],5],[7,6,4],[1,9,[],[],[[],9,3,0]]]
+[[4,4,[]]]
+
+[[6,[6,[1,8],[8,10,0,8,5]],[[7],7]],[[],0,[[8,9,8],1,3,[]]]]
+[[[[6,2,6,4,5],3,[0],[9]],4],[],[5,1,[[]],[3,[10,1,10,5,10]]]]
+
+[[7],[2,[7,3,[10]]],[]]
+[[[8,[4,4,2,7,5],6],7,[5,6,8,[2,3],6]],[[[5,10],[8,9,2]],7,[1,[3,5,2],[6,9]],9],[],[[[8,3,3,2,8],[]],2,7],[3,[[2,1,5,3],[2],0],[[6,6,6,2,0],8,[9,9,8,5,6],[3,9,6]],[8,4,5],[1,[7,4],[2,3,0,2,4]]]]
+
+[[[[10]],[[]],7,[[3,0],9,2]]]
+[[[[1,7,6,6,3],3,[6,7,7],3],[],5]]
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