#include<bits/stdc++.h>
using namespace std;
struct group{
      int id;
      int score;
}g[105];
bool cmp(group a,group b){
	if(a.score==b.score)
	return a.id<b.id;
	else
	return a.score>b.score;
}
int main(){
     int n;
     cin>>n;
     for(int i=0;i<n;i++)
	 cin>>g[i].id>>g[i].score;
	 sort(g,g+n,cmp);
 for(int i=0;i<n;i++)
 cout<<g[i].id<<" "<<g[i].score<<endl;
	return 0;
}