diff --git a/to-lower-case/201411108.py b/to-lower-case/201411108.py
new file mode 100644
index 0000000000..67a576175d
--- /dev/null
+++ b/to-lower-case/201411108.py
@@ -0,0 +1,13 @@
+# TC: O(n)
+# SC: O(n)
+class Solution:
+    def toLowerCase(self, s: str) -> str:
+        result = []
+
+        for char in s:
+            if 'A' <= char <= 'Z':
+                result.append(chr(ord(char) + ord('a') - ord('A')))
+            else:
+                result.append(char)
+        
+        return ''.join(result)