#!/usr/bin/env pypy

import collections


def count_miracle_items(conds, props):
    ctr = collections.Counter()
    for j, (x, y) in enumerate(props, start=1):
        for a, b in conds:
            if x <= a and y >= b:
                ctr[j] += 1
    try:
        max_num = ctr.most_common(1)[0][1]
    except IndexError:
        return [0]
    else:
        return [k for k, v in ctr.items() if v == max_num]


def main():
    n = int(input())
    conds = [tuple(int(ab) for ab in input().split()) for _ in range(n)]
    m = int(input())
    props = [tuple(int(z) for z in input().split()) for _ in range(m)]
    print(*count_miracle_items(conds, props), sep="\n")


if __name__ == '__main__':
    main()