#-*- coding:utf-8 -*- string = raw_input() table = {} for str in string: table[str] = table.get(str, 0) + 1 my_dict = {key: value for key, value in table.items() if value != min(table.values())} output_list = '' str_list = list(my_dict.keys()) for s in list(string): if s in str_list: output_l...