import java.util.Scanner;


public class Main_yukicoder231 {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int n = sc.nextInt();
        int[] g = new int[n];
        int[] d = new int[n];
        int[] e = new int[n];
        for (int i = 0; i < n; i++) {
        	g[i] = sc.nextInt();
        	d[i] = sc.nextInt();
        	
        	e[i] = g[i] - 30000 * d[i];
        }

        int max = 0;
        int maxi = 0;
        for (int i = 0; i < n; i++) {
        	if (e[i] > max) {
        		max = e[i];
        		maxi = i + 1;
        	}
        }

        if (max * 6 >= 3000000) {
        	for (int i = 0; i < 6; i++) {
        		System.out.println(maxi);
        	}
        } else {
        	System.out.println("NO");
        }
        
        sc.close();
    }
}