package com.javarush.task.task10.task1019;
import java.io.*;
import java.util.HashMap;
import java.util.Map;
/*
Функциональности маловато!
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
HashMap <String, Integer> map = new HashMap<>();
while(true){
try {
int id = Integer.parseInt(reader.readLine());
String name = reader.readLine();
map.put(name, id);
if (name.isEmpty())
break;
}
catch (NumberFormatException a){
break;
}
}
for (Map.Entry<String, Integer> list: map.entrySet()
) {
String name1 = list.getKey();
Integer id1 = list.getValue();
System.out.println(name1 + " " + id1);
}
}
}