.
package com.javarush.task.task10.task1019;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
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));
Map<String, Integer> map = new HashMap<>();
while(true) {
String n = reader.readLine();
if (n == "") break;
int id = Integer.parseInt(n);
String name = reader.readLine();
map.put(name, id);
}
for (Map.Entry<String, Integer> pair : map.entrySet()) {
System.out.println(pair.getValue() + " " + pair.getKey());
}
}
}