#!/usr/bin/env python3

import sys
from collections import defaultdict

for line in sys.stdin:
    line = line.strip()
    if not line:
        continue
    
    line_list = line.split(" ")

    # key:value index:digit
    numbers=defaultdict(int)
    for index,word in enumerate(line_list):
        if word.isdigit():
            numbers[index] = word
    # 现在numbers里面就是index:digit的键值对了

    # 先判断找到了数字了吗
    if not numbers:
        print(line)
        continue

    # 然后交换最大的index和最小的index的值放回line
    max_index = max(numbers.keys())
    min_index = min(numbers.keys())

    line_list[max_index],line_list[min_index] = line_list[min_index],line_list[max_index]
    print(" ".join(line_list))

#!/usr/bin/env python3

import sys
from collections import defaultdict

dic = defaultdict(int)

for line in sys.stdin:
    line = line.strip()
    if not line:
        continue
    field = line.split("|")
    id_and_name = field[1:3]

    dic[field[1]] += 1

ans = []
for key in dic:
    if dic[key] == 2:
        ans.append(key)

ans.sort()
for id in ans:
    print(id)