h,w = map(int,input().split())

ans = [[0]*w for i in range(h)]

if h == 1 or w == 1:
    print(0)
    for i in ans:
        print(*i)
    exit()


for i in range(0,h,2):
    for j in range(0,w,2):
        if i+1 < h and j+1 < w:
            ans[i][j] = ans[i+1][j] = ans[i][j+1] = ans[i+1][j+1] = 1

num = 0
for i in range(2):
    for j in range(2):
        num += ans[-1-i][-1-j]

if num == 1:
    for i in range(2):
        for j in range(2):
            ans[-1-i][-1-j] ^= 1

num = 0
for i in ans:
    num += sum(i)
print(num)
for i in ans:
    print(*i)