Add u6/matching_brackets.py

u6/matching_brackets.py

@@ -0,0 +1,16 @@
+def is_paired(input_string):
+    stack = []
+    brackets_map = {
+        ")":"(",
+        "}":"{",
+        "]":"[",
+    }
+    for chat in input_string:
+        if char in "({[":
+            stack.append(char)
+        elif char in ")}]":
+            if not stack or stack[-1] != brackets_map[char]:
+                return False
+            stack.pop()
+    
+return len(stack) ==0