import sys
import numpy as np

readline = sys.stdin.readline
read = sys.stdin.read

v, d = map(int, readline().split())
if d == 1:
    ans = np.ones((v,v), dtype=np.int64)
else:
    ans = np.zeros((v,v), dtype=np.int64)
    ans[0] = 1
    ans[:,0] = 1
for l in ans:
    print(''.join(map(str, l)))