#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
int main() 
{
	int n;
	cin>>n;
	vector< pair< int, int > > a;
	for(int i = 0; i < n; ++i){
		int x,y;
		cin>>x>>y;
		a.push_back( make_pair(x+y,i+1));
	}
	sort(a.begin(), a.end());
	for(int  i = 0; i < n; ++i){
		cout<<a[i].second<<" ";
	}
	// your code goes here
	return 0;
}