题解 | #提取不重复的整数#
提取不重复的整数
http://www.nowcoder.com/practice/253986e66d114d378ae8de2e6c4577c1
```while True:
try:
s = input()
tmp = []
for i in reversed(range(len(s))):
if s[i] not in tmp:
tmp.append(s[i])
print(''.join(tmp))
except:
break
