题解 | #牛牛的抽奖游戏#
牛牛的抽奖游戏
https://www.nowcoder.com/practice/9c9300f7ecbb41f49c3e8727b4948038
un_number=int(input())
while un_number>=0:
if un_number==3:
break
un_number=int(input())
if un_number==3:
print('Congratulations!')
else:
print('Give up!')
