#include <bits/stdc++.h>

using namespace std;

#define REP(i, n) for(int i = 0; i < n; i++)
#define ALL(a) (a).begin(),(a).end()

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    int n;
    cin >> n;
    vector<int> e(n);
    REP(i, n) {
        int g, d;
        cin >> g >> d;
        e[i] = g - 30000 * d;
    }

    sort(ALL(e), greater<int>());
    REP(i, n) {
        if (e[i] * 6 >= 30000 * 100) {
            REP(j, 6) cout << i + 1 << endl;
            return 0;
        }
    }

    cout << "NO" << endl;
    return 0;
}