restructure zeta/** to storage/zeta/**

storage/zeta/py/completed/14425.py

@@ -0,0 +1,8 @@
+import sys
+
+input = sys.stdin.readline
+
+if __name__ == "__main__":
+    N, M = map(int, input().split())
+    S = {input().rstrip() for _ in range(N)}
+    print(sum(1 for _ in range(M) if input().rstrip() in S))