from sys import stdin
V,D = map(int,stdin.readline().split())

if D == 1:
    ans = [[1] * V for i in range(V)]
    for i in ans:
        print ("".join(map(str,i)))

else:
    ans = [ [0] * V for i in range(V)]
    for i in range(V):
        ans[0][i] = 1
    for i in range(V):
        ans[i][0] = 1

    for i in ans:
        print ("".join(map(str,i)))