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

ANS=[[1]*W for i in range(H)]

if H%2==0 and W%2==0:
    print(H*W)
    for ans in ANS:
        print(*ans)

elif H%2==1 and W%2==0:
    print(H*W-W)
    for i in range(W):
        ANS[0][i]=0

    for ans in ANS:
        print(*ans)
elif H%2==0 and W%2==1:
    print(H*W-H)
    for i in range(H):
        ANS[i][0]=0

    for ans in ANS:
        print(*ans)
else:
    if H<=W:
        for i in range(W):
            ANS[min(i,H-1)][i]=0
        print(H*W-W)
    else:
        for i in range(H):
            ANS[i][min(i,W-1)]=0
        print(H*W-H)
        
    for ans in ANS:
        print(*ans)