diff --git a/Top150Interview/856_Score_of_Parenthesis.py b/Top150Interview/856_Score_of_Parenthesis.py
new file mode 100644
index 0000000..6cb322a
--- /dev/null
+++ b/Top150Interview/856_Score_of_Parenthesis.py
@@ -0,0 +1,21 @@
+def scoreOfParentheses(s):
+    """
+    :type s: str
+    :rtype: int
+    """
+    score = left = right = 0
+
+    for x in s:
+        if x == "(":
+            left += 1
+            score += 1
+        elif x == ")":
+            right += 1
+            score += 1
+    if left > right:
+        score = 2 * left
+    else:
+        score /= 2
+    return score
+
+print(scoreOfParentheses("()"))