H,W = map(int,input().split())
if H % 2 == 0 and W % 2 == 0:
    print(H*W)
    l = [1 for i in range(W)]
    for i in range(H):
        print(*l)
elif H % 2 == 0:
    print(H*W-H)
    l = [1 for i in range(W)]
    l[-1] = 0
    for i in range(H):
        print(*l)
elif W % 2 == 0:
    print(H*W-W)
    l = [1 for i in range(W)]
    for i in range(H-1):
        print(*l)
    l = [0 for i in range(W)]
    print(*l)

else:
    if min(H,W) == 1:
        print(0)
        l = [0 for i in range(W)]
        for i in range(H):
            print(*l)
    else:
        
        L = [[1 for i in range(W)]for j in range(H)]
        for i in range(H):
            for j in range(W):
                if i == H-1 or j == W-1:
                    L[i][j] = 0
        L[-1][-1] = 1
        L[-1][-2] = 1
        L[-2][-1] = 1
        L[-2][-2] = 0
        ans = 0
        for i in range(H):
            ans += sum(L[i])
        print(ans)
        for i in range(H):
            print(*L[i])