#include <bits/stdc++.h>
using namespace std ;

struct team{
    int id, ind, solved ;
}ar[ 100005 ] ;

bool cmp( const team &a, const team &b ){
    return a.solved > b.solved ;
}

int main( ){
    int n ;
    cin >> n ;
    for( int i = 0 ; i < n ; i++ ){
        cin >> ar[ i ].id >>  ar[ i ].solved ;
        ar[ i ].ind = i ;
    }
    sort( ar, ar + n, cmp ) ;
    for( int i = 0 ; i < n ; i++ ){
        cout << ar[ i ].id << " " << ar[ i ].solved << '\n' ;
    }

}