#include <iostream>

using namespace std;


long int dani[101][150001];
int about[101];

int main()
{
    int N;
    long int team;
    int tasks;

    cin>>N;
    for(int i=0;i<=100;i++)
        about[i]=0;
    for(int i=0;i<N;i++)
    {
        cin>>team>>tasks;
        dani[tasks][about[tasks]]=team;
        about[tasks]++;
    }
    for(int i=N;i>=0;i--)
    {
        for(int j=0;j<about[i];j++)
        {
            cout<<dani[i][j]<<" "<<i<<endl;
        }
    }
    return 0;
}
i can not understand what the problem... array is big enough for this task