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

ans = 0
grid = []

if H % 2 == 0 and W % 2 == 0:
    ans = H * W
    grid = [[1] * W for _ in range(H)]
elif H % 2 == 0:
    # W is odd
    ans = H * (W - 1)
    for _ in range(H):
        row = [1] * (W - 1) + [0]
        grid.append(row)
elif W % 2 == 0:
    # H is odd
    ans = (H - 1) * W
    for _ in range(H - 1):
        grid.append([1] * W)
    grid.append([0] * W)
else:
    # Both are odd
    ans = (H - 1) * (W - 1) + (H - 1) + (W - 1)
    for i in range(H):
        row = []
        for j in range(W):
            if i < H - 1 and j < W - 1:
                row.append(1)
            elif i < H - 1 or j < W - 1:
                row.append(1)
            else:
                row.append(0)
        grid.append(row)

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