def print_ans():
    wa = sum([sum(ans[i]) for i in range(h)])
    print(wa)
    for l in ans:
        print(*l)
    return

h,w = map(int,input().split())
ans = [[1 for _ in range(w)] for _ in range(h)]
if h == 1 or w == 1:
    ans = [[0 for _ in range(w)] for _ in range(h)]
    print_ans()
elif h%2 == 0 and w%2 == 0:
    print_ans()
elif h%2 == 0 and w%2 == 1:
    for i in range(h):
        ans[i][-1] = 0
    print_ans()
elif h%2 == 1 and w%2 == 0:
    for j in range(w):
        ans[-1][j] = 0
    print_ans()
else:
    if h >= w:
        for i in range(w):
            ans[i][i] = 0
        for i in range(w,h):
            ans[i][-1] = 0
    else:
        for j in range(h):
            ans[j][j] = 0
        for j in range(h,w):
            ans[-1][j] = 0
    print_ans()