题解 | #提取不重复的整数#
提取不重复的整数
https://www.nowcoder.com/practice/253986e66d114d378ae8de2e6c4577c1
import sys
input_int = input()[::-1]
output_list = list(set(input_int))
output_list.sort(key=input_int.index)
output_str = ""
for ol in output_list:
output_str += ol
print(output_str)
