H, W = map(int, input().split())
G = [[0] * W for _ in range(H)]

if H == 1 or W == 1:
    ans = 0
elif H % 2 == 0 and W % 2 == 0:
    G = [[1] * W for _ in range(H)]
elif H % 2 == 0:
    for i in range(H):
        for j in range(W-1):
            G[i][j] = 1
elif W % 2 == 0:
    for i in range(H-1):
        for j in range(W):
            G[i][j] = 1
else:
    G = [[1] * W for _ in range(H)]
    if H >= W:
        for i in range(W):
            G[i][i] = 0
        for i in range(W, H):
            G[i][W-1] = 0
    else:
        for i in range(H):
            G[i][i] = 0
        for i in range(H, W):
            G[H-1][i] = 0


ans = sum(sum(d) for d in G)
print(ans)
for g in G:
    print(*g)