swap case added

Author: sahiljanbandhu

Strings/sWAP cASE/Solution.py

@@ -0,0 +1,8 @@
+def swap_case(s):
+    return s.swapcase()
+
+
+if __name__ == '__main__':
+    s = input()
+    result = swap_case(s)
+    print(result)