#include<iostream>
#include<algorithm>
using namespace std;
struct jiangPai{
	int id;
	int jiangPaiShu;

};
bool cmp(jiangPai a,jiangPai b){
	if(a.jiangPaiShu==b.jiangPaiShu)
		return a.id<b.id;
	else
		return a.jiangPaiShu>b.jiangPaiShu;
}
int main(){	 //c++16级奖牌榜 
	jiangPai jp[201];
	int n;
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>jp[i].id>>jp[i].jiangPaiShu;
	}
	sort(jp,jp+n,cmp);
	for(int i=0;i<n;i++){
		cout<<jp[i].id<<" "<<jp[i].jiangPaiShu<<endl;
	}
	return 0;
}