10814.java

import java.util.*;
import java.io.*;

public class Main {
  public static void main(String[] args) {		
 		FastReader fr = new FastReader();
		
		int N = fr.nextInt();
		String[][] arr = new String[N][2];
		
		for(int i = 0; i < N; i++) {
			arr[i][0] = fr.next();	// 나이
			arr[i][1] = fr.next();	// 이름
		}
 
		Arrays.sort(arr, new Comparator<String[]>() {
			// 나이순으로 정렬
			@Override
			public int compare(String[] s1, String[] s2) {
				return Integer.parseInt(s1[0]) - Integer.parseInt(s2[0]);
			}
		});
		
		for(int i = 0; i < N; i++) {
			System.out.println(arr[i][0] + " " + arr[i][1]);
		}
	}

  public static class FastReader {
		BufferedReader br;
		StringTokenizer st;
		public FastReader() {
			br = new BufferedReader(new InputStreamReader(System.in)); 
		}
		public FastReader(String s) throws FileNotFoundException { 
			br = new BufferedReader(new FileReader(new File(s))); 
		}
		String next() {
			while (st == null || !st.hasMoreElements()) {
				try { st = new StringTokenizer(br.readLine()); }
				catch (IOException e) { e.printStackTrace(); }
			}
			return st.nextToken();
		}
		int nextInt() { return Integer.parseInt(next()); }
		long nextLong() { return Long.parseLong(next()); }
		double nextDouble() { return Double.parseDouble(next()); }
		String nextLine() {
			String str = "";
			try { str = br.readLine(); }
			catch (IOException e) { e.printStackTrace(); }
			return str;
		}
	}
}