def print_ans(): 
    for l in ans:
        print(*l)
    return

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