diff --git a/algorithms/python/DifferentWaystoAdd Parentheses/differentWaystoAddParentheses.py b/algorithms/python/DifferentWaystoAdd Parentheses/differentWaystoAddParentheses.py
new file mode 100644
index 00000000..bec92a44
--- /dev/null
+++ b/algorithms/python/DifferentWaystoAdd Parentheses/differentWaystoAddParentheses.py	
@@ -0,0 +1,26 @@
+class Solution(object):
+    def diffWaysToCompute(self, expression):
+        """
+        :type expression: str
+        :rtype: List[int]
+        """
+        operations = {
+            "+": lambda x,y :x+y,
+            "-": lambda x,y :x-y,
+            "*": lambda x,y :x*y
+        }
+        
+        def backtrack(left, right):
+            res = []
+            for i in range(left, right+1):
+                op = expression[i]
+                if op in operations:
+                    nums1 = backtrack(left, i-1)
+                    nums2 = backtrack(i+1, right)
+                    for n1 in nums1:
+                        for n2 in nums2:
+                            res.append(operations[op](n1, n2))
+            if res == []:
+                res.append(int(expression[left:right+1]))
+            return res
+        return backtrack(0,len(expression)-1)
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