#include<bits/stdc++.h> using namespace std; int main() { int n; while(cin>>n) { int id[100],score[100]; for(int i = 0;i<n;i++) { cin>>id[i]>>score[i]; } for(int i = 0;i<n-1;i++) { for(int j = 0;j<n-i-1;j++) { if(score[j]>score[j+1]||(score[j] == score[j+1]&&id[j]>id[j+1])) { int temp1 = score[j]; score[j] = score[j+1]; score[j+1] = temp1; int temp2 = id[j]; id[j] = id[j+1]; id[j+1] = temp2; } } } for(int i = 0;i<n;i++) { cout<<id[i]<<" "<<score[i]<<endl; } } return 0; }