H, W = map(int, input().split())
if H % 2 == W % 2 == 0:
    ans = [[1]*W for _ in range(H)]
elif H*W % 2 == 0:
    if H % 2:
        ans = [[1]*W for _ in range(H-1)]
        ans.append([0]*W)
    else:
        ans = [[1]*(W-1)+[0] for _ in range(H)]
else:
    ans = [[1]*W for _ in range(H)]
    if H > W:
        for i in range(H):
            ans[i][min(i, W-1)] = 0
    else:
        for i in range(W):
            ans[min(i, H-1)][i] = 0

print(sum(sum(a) for a in ans))
for a in ans:
    print(*a)