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:
a = list(input())
c = a[::-1]
#c = list(map(int,d))
b = ''
for i in c:
if i not in b:
b = b + i
print(b)
except:
break
