H, W = map(int, input().split())

if H % 2 == 0 and W % 2 == 0:
    print(H * W)
    a = [1] * W
    for _ in range(H):
        print(*a)
elif H % 2 == 0:
    print(H * (W - 1))
    a = [1] * W
    a[0] = 0
    for _ in range(H):
        print(*a)
elif W % 2 == 0:
    print((H - 1) * W)
    a = [0] * W
    print(*a)
    a = [1] * W
    for _ in range(H - 1):
        print(*a)
else:
    mx, mn = max(H, W), min(H, W)
    print(mx * (mn - 1))
    ans = []
    cnt = [1] * mn
    x = (mx - mn) // 2
    for i in range(mn):
        cnt[i] += 2 * (x // mn)
        if i < x % mn:
            cnt[i] += 2
    b = []
    for i in range(mn):
        for j in range(cnt[i]):
            b.append(i)
    for i in range(mx):
        a = [1] * mn
        a[b[i]] = 0
        ans.append(a)
    if H >= W:
        ans2 = ans
    else:
        ans2 = [[0] * W for i in range(H)]
        for i in range(H):
            for j in range(W):
                ans2[i][j] = ans[j][i]
    for a in ans2:
        print(*a)