package zh.codegym.task.task10.task1019;
import java.io.*;
/*
功能还不够！
*/
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Map;
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<String,Integer>();
while(true)
{
String id=reader.readLine();
if(id=="")
{
break;
}
String name=reader.readLine();
if(name=="")
{
break;
}
map.put(name,Integer.parseInt(id));
}
for(Map.Entry<String,Integer> entry:map.entrySet())
{
System.out.println(entry.getValue()+" "+entry.getKey() ) ;
}
}
}