diff --git a/1012. Complement of Base 10 Integer.py b/1012. Complement of Base 10 Integer.py
new file mode 100644
index 0000000..69ee72d
--- /dev/null
+++ b/1012. Complement of Base 10 Integer.py	
@@ -0,0 +1,8 @@
+from math import log2
+class Solution:
+    def bitwiseComplement(self, N: int) -> int:
+        if N == 0:
+            return 1
+        count = int(log2(N)) + 1
+        return 2 ** count - N - 1
+