import java.util.*;

public class Main {
    static final long MAX = (long)Math.sqrt(Long.MAX_VALUE);
	public static void main (String[] args) {
    	Scanner sc = new Scanner(System.in);
    	int n = sc.nextInt();
    	int[] costs = new int[n];
    	int[] hots = new int[n];
    	for (int i = 0; i < n; i++) {
    	    costs[i] = sc.nextInt();
    	    hots[i] = sc.nextInt();
    	}
    	int m = sc.nextInt();
    	int[] counts = new int[m];
    	for (int i = 0; i < m; i++) {
    	    int c = sc.nextInt();
    	    int h = sc.nextInt();
    	    for (int j = 0; j < n; j++) {
    	        if (c <= costs[j] && h >= hots[j]) {
    	            counts[i]++;
    	        }
    	    }
    	}
    	int max = 0;
    	ArrayList<Integer> list = new ArrayList<>();
    	for (int i = 0; i < m; i++) {
    	    if (counts[i] > max) {
    	        list.clear();
    	        list.add(i + 1);
    	        max = counts[i];
    	    } else if (counts[i] == max) {
    	        list.add(i + 1);
    	    }
    	}
    	if (max == 0) {
    	    System.out.println(0);
    	    return;
    	}
    	StringBuilder sb = new StringBuilder();
    	for (int x : list) {
    	    sb.append(x).append("\n");
    	}
	    System.out.print(sb);
    }
}