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package com.javarush.task.task18.task1822;
/*
Поиск данных внутри файла
*/
import java.io.*;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader readNameOfFile = new BufferedReader(new InputStreamReader(System.in));
String name = readNameOfFile.readLine();
int id = Integer.parseInt(args[0]);
File file = new File(name);
FileReader fr = new FileReader(file);
BufferedReader reader = new BufferedReader(fr);
String s;
String[] str;
while ((s=reader.readLine()) != null) {
str = s.split(" ", 2);
if (Integer.parseInt(str[0]) == id) {
System.out.println(str[1]);
}
}
fr.close();
reader.close();
readNameOfFile.close();
}
}