import sys
readline=sys.stdin.readline

H,W=map(int,readline().split())
if 1 in (H,W):
    ans_lst=[[0]*W for h in range(H)]
elif H%2==0 and W%2==0:
    ans_lst=[[1]*W for h in range(H)]
elif H%2==0:
    ans_lst=[[1 if w!=W-1 else 0 for w in range(W)] for h in range(H)]
elif W%2==0:
    ans_lst=[[1 if h!=H-1 else 0 for w in range(W)] for h in range(H)]
else:
    ans_lst=[[1]*W for h in range(H)]
    for i in range(max(H,W)):
        ans_lst[min(i,H-1)][min(i,W-1)]=0
print(sum(ans_lst[h][w] for h in range(H) for w in range(W)))
for h in range(H):
    print(*ans_lst[h])