import sys

sys.setrecursionlimit(10**7)
def I(): return int(sys.stdin.readline().rstrip())
def MI(): return map(int,sys.stdin.readline().rstrip().split())
def LI(): return list(map(int,sys.stdin.readline().rstrip().split()))
def LI2(): return list(map(int,sys.stdin.readline().rstrip()))
def S(): return sys.stdin.readline().rstrip()
def LS(): return list(sys.stdin.readline().rstrip().split())
def LS2(): return list(sys.stdin.readline().rstrip())


V,D = MI()

if D != 1:
    print('1'*V)
    ans = '1'+'0'*(V-1)
    for _ in range(V-1):
        print(ans)
else:
    ans = '1'*V
    for _ in range(V):
        print(ans)