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#!/usr/bin/env python3

import sys


def main():
    b, e = "0", "1"
    c = "1"
    for i in range(100):
        sys.stdout.write(b)
        for _ in range(1, 99):
            sys.stdout.write(c)
        sys.stdout.write(e)
        sys.stdout.write("\n")
        b, e = "1", "0"
        c = "0" if c == "1" else "1"


if __name__ == "__main__":
    main()