import sys
input = sys.stdin.readline

V,D=map(int,input().split())

E=[[0]*V for i in range(V)]

if D==1:    
    for i in range(V):
        for j in range(V):
                E[i][j]=1

else:
    for i in range(V):
        for j in range(V):
            if i==0 or j==0:
                E[i][j]=1

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