题解 | #提取不重复的整数#
提取不重复的整数
https://www.nowcoder.com/practice/253986e66d114d378ae8de2e6c4577c1
num = input()
s_num = num[::-1] #逆序原字符串
new_num = '' #初始化一个空串
for i in s_num:
if i in new_num: #循环的i存在，pass
pass
else: #不存在，就加进去
new_num = new_num+i
print(new_num #最后打印
