class Solution:
    pass

def test(solution):
    testcases = ()

    for testcase in testcases:
        pass


def bench_mark():
    solution = Solution()

    test(solution)


if __name__ == '__main__':
    bench_mark()

    # something about range
    print(range(10))  # range(0, 10)
    print(range(10)[::-1]) # range(9, -1, -1)
    
