# https://www.acmicpc.net/problem/4101 # boj, 4101: 크냐?, python3 def solve(a: int, b: int) -> str: return 'Yes' if a > b else 'No' if __name__ == '__main__': while True: a, b = map(int, input().split()) if a == 0 and b == 0: break print(solve(a, b))
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