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

print(ans)
for map in MAP:
    print(*map)