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

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

if D == 1:
    for i in range(V):
        for j in range(V):
            if i != j:
                E[i][j] = 1
else:
    # Connect all nodes to node 0 (star structure)
    for i in range(1, V):
        E[0][i] = 1
        E[i][0] = 1
    # Add an edge between node 1 and 2 to break bipartite (if V >=3)
    if V >= 3:
        E[1][2] = 1
        E[2][1] = 1

for row in E:
    print(''.join(map(str, row)))