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

max_ans = 0
grid = [[0] * W for _ in range(H)]

if H % 2 == 0 and W % 2 == 0:
    max_ans = H * W
    for i in range(H):
        for j in range(W):
            grid[i][j] = 1
elif H % 2 == 0 and W % 2 == 1:
    max_ans = H * (W - 1)
    for i in range(H):
        for j in range(W - 1):
            grid[i][j] = 1
elif H % 2 == 1 and W % 2 == 0:
    max_ans = (H - 1) * W
    for i in range(H - 1):
        for j in range(W):
            grid[i][j] = 1
else:
    max_ans = H * W - 1
    for i in range(H):
        for j in range(W):
            grid[i][j] = 1
    grid[H-1][W-1] = 0

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