mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    V, D = map(int, input().split())
    if D == 1:
        for _ in range(V):
            print("1" * V)
    else:
        print("1" * V)
        for _ in range(V-1):
            print("".join(["1", "0" * (V-1)]))


if __name__ == '__main__':
    main()