import java.util.Scanner;
public class Acm {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        int n = s.nextInt();
        int[] a = new int[n];
        int[] b = new int[n];
        for(int j = 0; j < n; j++){
                Scanner u = new Scanner(System.in);
                   a[j] = s.nextInt();
            b[j] = s.nextInt();
        }

        for(int p = 100; p >= 0; p--){
            for(int q = 0; q < n; q++){
                if(b[q] == p){
                    System.out.println(a[q] + " " + b[q]);
                }
            }
        }
    }
}

Edited by author 26.09.2014 23:34