#define _USE_MATH_DEFINES
#include <algorithm>
#include <cstdio>
#include <functional>
#include <iostream>
#include <cfloat>
#include <climits>
#include <cstring>
#include <cmath>
#include <complex>
#include <map>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <time.h>
#include <vector>
using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> i_i;
typedef pair<ll, int> ll_i;
typedef pair<double, int> d_i;
typedef pair<ll, ll> ll_ll;
typedef pair<double, double> d_d;
struct edge { int u, v; ll w; };
typedef complex<double> C;

ll MOD = 1000000007;
ll _MOD = 1000000009;
double EPS = 1e-10;

int main() {
    int n;
    while (cin >> n) {
        vector<pair<i_i, int> > a(n);
        for (int i = 0; i < n; i++) {
            int x, y; cin >> x >> y;
            i_i p(y - x, y);
            a[i] = make_pair(p, i);
        }
        sort(a.begin(), a.end());
        for (int i = 0; i < n; i++)
            cout << a[i].second << (i + 1 < n ? ' ' : '\n');
    }
}