diff --git a/day13-1.py b/day13-1.py
new file mode 100644
index 0000000..e5c5ae7
--- /dev/null
+++ b/day13-1.py
@@ -0,0 +1,74 @@
+import ast
+
+def comparison(_left, _rigth):
+    _wrong = ''
+    if type(_left) is list and type(_rigth) is list:
+        __for = min(len(_left), len(_rigth))
+        for j in range(__for):
+            _wrong = comparison(_left[j], _rigth[j])
+            if _wrong in ['yes', 'no']:
+                return _wrong
+        if len(_left) > len(_rigth):
+            _wrong = 'yes'
+        if len(_left) < len(_rigth):
+            _wrong = 'no'
+    elif type(_left) is list:
+        if _left == []:
+            _wrong = 'no'
+            return _wrong
+        _wrong = comparison(_left[0], _rigth)
+        if _wrong == '':
+            _wrong = 'yes'
+    elif type(_rigth) is list:
+        print(_left, _rigth)
+        if _rigth == []:
+            _wrong = 'yes'
+            return _wrong
+        _wrong = comparison(_left, _rigth[0])
+        if _wrong == '':
+            _wrong = 'no'
+    else:
+        if _left > _rigth:
+            _wrong = 'yes'
+        if _rigth > _left:
+            _wrong = 'no'
+    return _wrong
+
+class pair():
+    def __init__(self, left, rigth):
+        self.left = ast.literal_eval(left)
+        self.rigth = ast.literal_eval(rigth)
+    
+    def compare(self):
+        self.wrong = ''
+        _for = min(len(self.left), len(self.rigth))
+        for i in range(_for):
+            self.wrong = comparison(self.left[i], self.rigth[i])
+            if self.wrong in ['yes', 'no']:
+                return self.wrong
+        if len(self.left) > len(self.rigth):
+            self.wrong = 'yes'
+            return self.wrong 
+        return 'no'
+
+    def testPrint(self):
+        print(self.left)
+        print(self.rigth)
+        print('')
+
+pairs = []
+sum = 0
+
+with open('input13.txt','r') as f:
+    inp = f.read().splitlines(keepends=False)
+
+tempa = []
+for i in range(0, len(inp), 3):
+    pairs.append(pair(inp[i], inp[i+1]))
+
+for pairN in range(len(pairs)):
+    print(pairN)
+    if pairs[pairN].compare() == 'no':
+        sum += (pairN + 1)
+
+print('the sum of indices is:', sum)
\ No newline at end of file
diff --git a/day13-2.py b/day13-2.py
new file mode 100644
index 0000000..19c78e4
--- /dev/null
+++ b/day13-2.py
@@ -0,0 +1,81 @@
+import ast
+
+def comparison(_left, _rigth):
+    _wrong = ''
+    if type(_left) is list and type(_rigth) is list:
+        __for = min(len(_left), len(_rigth))
+        for j in range(__for):
+            _wrong = comparison(_left[j], _rigth[j])
+            if _wrong in ['yes', 'no']:
+                return _wrong
+        if len(_left) > len(_rigth):
+            _wrong = 'yes'
+        if len(_left) < len(_rigth):
+            _wrong = 'no'
+    elif type(_left) is list:
+        if _left == []:
+            _wrong = 'no'
+            return _wrong
+        _wrong = comparison(_left[0], _rigth)
+        if _wrong == '':
+            _wrong = 'yes'
+    elif type(_rigth) is list:
+        if _rigth == []:
+            _wrong = 'yes'
+            return _wrong
+        _wrong = comparison(_left, _rigth[0])
+        if _wrong == '':
+            _wrong = 'no'
+    else:
+        if _left > _rigth:
+            _wrong = 'yes'
+        if _rigth > _left:
+            _wrong = 'no'
+    return _wrong
+
+
+def compare(left, rigth):
+    left = ast.literal_eval(left)
+    rigth = ast.literal_eval(rigth)
+    wrong = ''
+    _for = min(len(left), len(rigth))
+    for i in range(_for):
+        wrong = comparison(left[i], rigth[i])
+        if wrong in ['yes', 'no']:
+            return wrong
+    if len(left) > len(rigth):
+        wrong = 'yes'
+        return wrong 
+    return 'no'
+
+def loop(_item):
+    for q in range(len(sorted)):
+        if compare(_item, sorted[q]) == 'no':
+            sorted.insert(q, _item)
+            return
+    sorted.append(_item)
+
+unsorted = []
+sorted = []
+
+with open('input13.txt','r') as f:
+    inp = f.read().splitlines(keepends=False)
+
+for line in inp:
+    if line != '':
+        unsorted.append(line)
+unsorted.append('[[2]]')
+unsorted.append('[[6]]')
+
+sorted.append(unsorted[0])
+unsorted.pop(0)
+for item in unsorted:
+    loop(item)
+
+for index in range(len(sorted)):
+    if sorted[index] == '[[2]]':
+        divider1 = index + 1
+    if sorted[index] == '[[6]]':
+        divider2 = index + 1
+
+print('Decoder Key:' ,(divider1 * divider2))
\ No newline at end of file
diff --git a/in.txt b/in.txt
index 433e0d2..27c8912 100644
--- a/in.txt
+++ b/in.txt
@@ -1,5 +1,23 @@
-Sabqponm
-abcryxxl
-accszExk
-acctuvwj
-abdefghi
\ No newline at end of file
+[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]
\ No newline at end of file
diff --git a/input13.txt b/input13.txt
new file mode 100644
index 0000000..669e28a
--- /dev/null
+++ b/input13.txt
@@ -0,0 +1,449 @@
+[[10],[4,3,5,[[],8,[4,3,10,9,4]],5],[[[6],[8]],9,1],[4,8,2,[[],[2,1,7]],6]]
+[[5],[10]]
+
+[[9,2],[[9,[2,10,3,1],[9,0,6],[5,8,0]],4,4,10,8],[[[0,0],[4,9,4]],7,6,2,6],[[[1]],[[2,10,4,8,5]]],[7,5,6,1]]
+[[[[3,0,2,9],[],[6,10,6],[0,4,5,2]]]]
+
+[5,5,6,0]
+[5,5,6,0,0]
+
+[[1,[3,[5,4,9,7],4,10,10],0],[]]
+[[6,[[8,9,1,9,10],[8,0]],7],[9,[[8]],10],[[[9],8,8,5],[[6,6,5,10,7],[7,4,9,0,10],6,[8,7]],[2,[],5,4,[1,8,9,10]],2,3]]
+
+[[2],[[]],[3,4,[[10],1,8,2,[4,0]],7,7]]
+[[],[[[1],0],9,4,0],[[],5],[[[3],6,9,[10,8,0,0,3]],[9,10]],[8]]
+
+[[[[8,7,0,2]],[7,8,10,[]],[[8,0,2],[1,1]]],[8,[3,[1,8,1,5,1],[2,3],3,9],9],[3,[[8,6,4,7,8]],2,[3,9,[],9],3],[[9,5,[],[0,0],[3]]],[0,4,10,[[6],[3,7,2,8,1]]]]
+[[[[5,4],[5,4,0],[0,1,9,6,1]]],[[1],7,[[0,10,9,3,5],[8],5,9,[0,8,8,4,9]],[0,[1],[2]],[10]],[[[10,0,2,8,9],[4,4],3],[0,7,[3,8,7,4,8]],4],[3,[[10,4,2],[7,10],[]],6,[[2,3,1,4],1],6]]
+
+[[],[1,[10],[0,[3,3,3]],10],[[[]]],[],[2,[[]],9,[[7,9]]]]
+[[[9,[1,1,1,4,7]],3,[[2,5,2,2,6]],[[],[4,10,5,2,3]],[[7,1]]],[[5,3,1,[9]],[[3,7,10],10,7]],[[[8],[2],5,7,8],8,[[8,3,6,9,10]],[[4,8],[4,4,0,4,8],[],2],[]],[[5,[4,5],[0,5,7,5,3]],9,2,[[1,8,4,10],8],[[],7,[9],7,[2,1,10]]],[7,[6,8,[1]],[[7,7]]]]
+
+[[],[2,2,7,[[0,3,7,8,10]],[1,[7],[4,6,6,5,10],10]],[6,6,[[9,8],7]]]
+[[[5,[6,6,5,2,8],1]],[0,[4,4,4,1,[4,10,5,1,5]],[4,9,9]],[]]
+
+[[10,[6,6,0,[7,10,3,9,0]],[4]],[],[2,[2,0,4,4],[[8,0,10,0,4]]],[[[5,3,7,2,10],[6,6,5,0],[6,3,4],5]],[[8]]]
+[[[[3,6,5,7,6],7],[],2,3],[6],[1,[5,1,9,[7,5,6,7,9],10],9],[10,[9],5,[[1],[0,2,6,5,9],[4,2,4,5],[1,1,8],4],[]],[[2],6,[[2,3,3,8,3]],[2,4],[1,[8],10,[4,0,7],[1,5,2,6,10]]]]
+
+[[],[8,1,0],[[[7,4],5,6,1,[]]],[8,0,[[9,2,6,7]]]]
+[[[0,[10,5,7,10,6],6],[],6,4,[8]],[8,8,[4,[6,1],[6,9,8,10,10],1,0]],[3]]
+
+[[[10],3,[],1,4],[1,7,[1,[9,1],[5,0]],[[],10],2],[[8],[0,[2,4,2,5],[7,3]],6],[[2,[8,4]],[8,[6,7,6,2]],1,1,[1,3]],[2,0,6]]
+[[],[[]],[],[0,10,[9,0,7],[3,9]],[]]
+
+[[],[[[6,5],1],[[8,9,7,0,10],0,[]],[[3,5,4,9],8],10,6]]
+[[],[],[10,5,3]]
+
+[[[6,[10,7,10,6,4],[5,6,8,9],4],7,[6,[7,8,8],[6,3,8,10,0],[5]],5,2],[9,4,4,[9,8,3],4],[4,[[8,4],6,5],[4],7,[[]]]]
+[[5,[[0]],[1,10,[3,2,10,4],[1,10],[6,2]],1]]
+
+[[[10,0,[9,0]],3,[],0],[[],3,[[7,9,5],[6,10,9,3,5],[5,6,3]]],[],[3],[]]
+[[9,5,6,10,[]],[],[[3,[],[2,8,4,6],[],2],1,10]]
+
+[[[7,3,[3],[],[]],9,[1,[2,7,0],10,[10,9,8,10,6],1],[[8,4,8],10,8,6,7],3],[[[7,3,1,10,8],[5,6,5],7,1],1,6],[[[0,10,5,2],[2],[3,7,9,8,1]],[4,[7,1,10],7],1,[1,[1,10,7,0,9],1,[10,4],7],2]]
+[[9],[]]
+
+[[[[4,2],3,2,[10,4,0,10]],[],7]]
+[[[2,1,2,8],0,[],6,[10,[5,2,8,10],7]],[[[1,3,6,4],2,[],8],10],[[],[[2,6,8,9],[10,3,4,0,0],[4],[8,8,2],9],9]]
+
+[[0,7,[[7,10,2,7,2],7],[3,7],1],[],[9,2,[[1,1,3],[3,2,10,7,3],6]],[[3,[7,6,0]]]]
+[[[],[[0,5,2]],10,9,0]]
+
+[[[3,[8,7,4],4]],[[[2,5,3]],7,2,8,6],[[[4,5,9],[7,10]],[[10,1,9,0,3],10,3,9],[[9],0],8]]
+[[1,8]]
+
+[[10,[[],9,10,6,[6]],10,3]]
+[[2,8,3],[4,[0,5,7,9,1],10],[5,[[10,9,9,3],[7,5,4],4,[]],[[],8],[[]]]]
+
+[[[7,0,1,4,5],4]]
+[[],[[[1,9]],0]]
+
+[[4,1,[6]],[5,4,[]]]
+[[[]]]
+
+[[10,[],[[2,10,10,6],[9,2,2,7],[],5,8],10],[[0,[10,8,8],[1,2]],10],[10,[[7,3,5,6],[7,3,1],[2,5,9,1,6],[9]],[1,[1,0,1,3,1]],10,[[3,9],0]]]
+[[1,[2,[1,10,8],[],[0,0]],3],[7,[1],[[8,2,4,2],6,8,[7,7,3,0],[5,8,4]],[7,[3,3,1],0]],[[5,5],[]],[[]]]
+
+[[6],[],[],[3,0],[[3],0,6,[[7,1,2],[9,0]],0]]
+[[],[[1],2],[[[8],[2,8,6],[1,1,10],10],[[9,10,0],9,5]],[2,4,[5],[5,9]]]
+
+[[[[5]],6,[[7,7,6,3],[],2,2,[1,8,8,9,2]],[[2,2,8,0,6],8,[9,5],7,[9,3,2]]],[7,7,7,7,[]],[[],8]]
+[[10]]
+
+[[[10,3,6,[4,5]]],[[[1,8],[6],4,7],0,10],[6,8],[[[],[]],[[],[7,0]],[6],[7]],[8,5,5]]
+[[10,[[8,1,1,5,2],[],[4,5,5,6]],7,[2,[9,6]],[[9,8,6,9]]],[2],[[]],[[[5,5,1,1],0,[7],4,[0]],8,1,[]]]
+
+[[4,2]]
+[[5,6],[[[],[5],0,[2,7,6,5,3]],6,6],[],[[[]],8,3,[[9,5]],9],[1,1]]
+
+[[[[0,4,6],[3,5]],[[4],10,4,9],2,10,[[],9,3]],[[5],10],[9,[[],[9,5,9,8]],1],[],[4,3]]
+[[9,[[2,9,4,5],[0,0],2,10],[],[[]],[0,9,6,[]]],[5,4,7],[[8,4,[6,4,9,5]],9],[]]
+
+[[[[0,7,6,1,2],[2,9,3,10,7],[7,7,9,6],[10,2,4,7,1],[10,1,9,4,5]]],[6,8,0,[9,[0,4,4],1,3,7]],[1,4,[2,[10,6,9,2],[3,10],[2,7,4,4,7],10],2],[[[],[7,0,3]],[[8,6,7,5,0]],0]]
+[[],[[6,5,2],2]]
+
+[[[[9,4],2,4,5,5],4,[2,5,3],[8]],[[9,2],10,7,5,6]]
+[[3,[3,2,8],7,[1],[9]],[[],8],[[[],9,2]]]
+
+[[],[9,5,4],[8,4],[[8],6,8,3],[[5]]]
+[[],[10]]
+
+[[0,2],[[1,8,[8,6,5,7,9],10,[4,2,7,5]],[[4,6],2],5,1,10]]
+[[[],[9,[5,7,6,8],[4,3,8,2,3],[8,9,9,6],[8,2,10,9]],7,[],2],[5,6,9],[5,[9,7,[]]],[6,[[1,6,6,3],3,[],[3],[3,9,7,10,6]],5,[[5,2,4,5]]]]
+
+[[2,[[5,10,3]],7,9],[8]]
+[[10,0,8,2,[[3,0,5,10,1],[0,3,0,9,2],7,[]]]]
+
+[[9,[[9,5]],4],[5,[8]]]
+[[],[1,[]],[]]
+
+[[[],[10,[9,2,2,9],3]]]
+[[[8],[[4,9,0,5,7]],[]],[1,6],[],[]]
+
+[[],[],[],[[[3,3,8,0,9],5],[[0,0,10,7],[1],4,8],10,8]]
+[[10],[],[4,6,[[7,10,10]],[[9,5,10,1,0],[3,6],[1,9]]],[0,3,[0,6,3,[1,6,8,4],2],6],[8,6,[[4,5,7,8]]]]
+
+[[[[],[6,8],[4,2,5],[6,2,10],7],[],[[9],[7],[0],[10,1,8]],0],[[[6,8]],[10],[[9,5,8,0],[]]]]
+[[[0,[8,3,2,7],7,[6,9],[9,0,10,9,0]]],[]]
+
+[[1,[]],[],[[],6],[9]]
+[[0,10,4,3],[[4],[]],[4,6,[3,[6,0,6,6,9],[8,8],8,2],[7,8,[2,3,10,9],9],[[2,6,0,6],[3,6,10]]]]
+
+[[],[],[[1],5,[10,6,[7],3],[[1,3],9,[8,4,9,1],[8,6,10,0]],6],[[[8,10,7,4],[3,6,10],10,0],[7,[6,8,2,0,10]],2]]
+[[[4],[],6,[[9],[2,7]],0],[],[[[10,0,3],[9],[0,7,6,10],7],9,3,[5,0,2,7,[1,6,2,9]]]]
+
+[[[4,[10],2],10,[[0],1,[5],[0,10,6,4,7]],0,7],[3,[9,3],10,[[2],7,[4],[7,7],8],[[3,0,10],4,[7,1,10],[7,2,1,6,0],10]],[[7,[9,1,10,1]],0,8],[]]
+[[[10,[6,9,9],[],6],[]]]
+
+[[1,2,[7]],[[[],[3,4,9],[4,0,10,10,6],[8,6,10,6,5],[9,10,8,3,10]],7,[[8]],[[6,6]]],[[[7,6],[0,1]],[],4],[],[[],[4,[9,4],[4,1,4],9],1,10,8]]
+[[[[7,4]],[[],[],0,1],7]]
+
+[[[[1,2],[2,3,6,4],8,6,[]],[7,[3,3],7,[6,2,3,10]],[],[7],0],[],[1,[],2,2,5],[[2]]]
+[[1],[4,[]],[],[[10,[3,4,6,1],7,[10,1,1,5],[7,1,2,7]],3,4,8,[[]]],[[[5]],9,[[0,6,0,6],[]],0,3]]
+
+[[2],[[4,2,6,1,[]],[0,7,[3,6,7,1],[9,3,9,9,9]],[9,[],[7,7,7],0]],[0,[],1,[[],[10,1,1,6,8],[8,1,7,1]],[[],[10,10,4,6,9],[2,6,5],9]],[1,8,[],[]]]
+[[10,3,[],3],[10,[7,1,[2,5],6,1],[4],[[6],4,6,[8,7,8,0],2],[6,3,3,[]]],[1,[0,[4,0,7,7]],3,[[3,0,5],10,[5,3,4]],[[10,8]]],[10,10,[[10,5,10,7,2]],1,8],[0,4,[[3,0,6,7,8],[9,10,0],[1,4,0,9],9],5]]
+
+[[1],[4,[],2,4,[]],[3,[9,0,4,[]]]]
+[[[8]],[[0],[9,[5],9,[4,9,2]],7,5,[[9,9,9,5],2]],[[9,[]],[[]]],[10,7]]
+
+[[7],[10,[8,8,7,7]],[[1],8],[],[[],[[],1,[9,8],7,7],5,[]]]
+[[1,3,[],[[],[],[10,2,3,1]],2],[[],4,[[4,10],8,4,[7,0,3]],10],[[[5,9,9,1,6],[]]]]
+
+[[[[6,3,8]]],[[[0,10,10]],6,[1,[0,6,9,9],[1,5,7,5]]],[6,[[],[1],8,2]],[5,8]]
+[[[[],[3,3,2],[2,6],[1,3,2,1,4],6],[[]]],[0,1,8,[0,[1,0],[4,6]]],[],[],[[[10,9,3],[0,8,0,9],10,5,1],[10],[[],2,[10,5,8,0,10],6]]]
+
+[[[7,6,8,[0,1,10,2],2]],[[[8,10,10],[10,7]],[[1],3,6,10],7,1,7],[8],[[[9,10,4],0,[],[4,0,7,9],[1,3]]],[[[5,5,4,0,9],[4,0,5,9],8,[3,5,7,4]],9,7,[3,[9,3,2,6,1],[2,9,7]]]]
+[[[[4,5],5,10,[10,9,2,3,10]],[[1,9,9,0,0]],[8,9,[],[9,9],0]],[6,3]]
+
+[[[[1],0,[6,10,4,0,7],9],10],[[[7],[8,0,3,10]],[[5,8,8,5],[1,8,0,9,0],[],[6,8,5,7,0],3],[[6,8,0],7,[5,2,4]]]]
+[[9,[8,2,4],[1,4,8],[[3,3,2,3,1],[5],3,[2,2,5,10,6],0],[1,[7,1,6,9,10],[1],8,7]],[10],[9]]
+
+[[7,2,[9,[],3,[7,0,1,1,0],[9,1,4,9]],[8,1,[7]]],[7],[9],[]]
+[[[],[7],10,0,7],[4,4,9,[[9,2,2,1,5],[5]],9],[[[0,4,1,3,10],0]],[[[6,3,4,7],2,[5,5,7]],[[3],[],[0,1,4],8,1],7,[1,7,[10,10,3,5]],2],[[[3,10,2],[4],8,[3,9,1,6],[9,7,2]],9,[],8]]
+
+[[[[],1,[2,0,7,7],2],[0,2],[[0,2,5,6,9],4,0,[7,9],[0,0,3]],[[0,2,0,7]]],[[[7],[10,2,3],[]],2,[[8,9,6,8]],1,10],[[4,[],[10],[2,2,2,1],5],[],5,[6,7,[],8]],[],[7,6,[2,6,6,4,9]]]
+[[7,[7,7,[5,3,2],3,4],10,0,5],[1,4],[]]
+
+[[],[6,7,[2],[[8,8,9,8,9],9],0],[[[7,10,2,4,8],5],0,[[],[10,1],4,2],[1,[3,6,9]]]]
+[[6,1,4,2],[[[1,2,10]]],[[[4,9]],[],2,9],[[[],[8,3,1],5],6],[]]
+
+[[[[0,5,0,4,1],6,1,5,[4,4,4]],4,[[7]],[8,[3,5,2,6]]],[[[]],[[5,0,10,5],[],[1,8,8,5]],0,6,8],[0],[[[9,0,1],1,1,7,[4,1]]]]
+[[0],[],[[[2]],[7],3,2],[5,[[1],[]]]]
+
+[[[[4,9,6],[3,2,10],5],6,[],1,[[1,2],[4]]],[10,[5,[],7,9],[],4]]
+[[[[5,5,8],6]]]
+
+[[1,10,3],[10,[6,5,1,[],3]],[7]]
+[[[[6,0,6,9,2],[10],3,4],4,0,[]],[[[4,1],[5,9,3,4,7],7]],[],[3,3],[]]
+
+[[],[4,0,6,[2,[10,0],0,[4,9]],[10,[5]]]]
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