def is_buy(budget,taste):
    def _(price,hot):
        return budget >= price and taste <= hot
    return _

N = int(input())
members = [is_buy(*map(int,input().split())) for x in range(N)]
M = int(input())

mentaiko = {}
popular = 0
for i in range(M):
    price,hot = map(int,input().split())
    cnt = 0
    for member in members:
        if member(price,hot):
            cnt+=1
    if cnt:
        mentaiko[i + 1] = cnt
        popular = max(popular,cnt)

if mentaiko:
    mentaiko = sorted([x for x,y in mentaiko.items() if y == popular])
    for miracle in mentaiko:
        print(miracle)
else:
    print(0)