H, W = map(int, input().split())
H_even = H - (H % 2)
W_even = W - (W % 2)
ans = H_even * W_even

print(ans)
for i in range(H):
    row = []
    for j in range(W):
        if i < H_even and j < W_even:
            row.append('1')
        else:
            row.append('0')
    print(' '.join(row))