n = int(input())
members = [list(map(int, input().split())) for _ in range(n)]
m = int(input())
mentaiko = [list(map(int, input().split())) for _ in range(m)]
mentaiko_count = [0] * m

for i, (x, y) in enumerate(mentaiko):
    for price, hot in members:
        if x <= price and y >= hot:
            mentaiko_count[i] += 1

max_ = max(mentaiko_count)
if max_ == 0:
    print(0)
else:
    print(*[i + 1 for i, x in enumerate(mentaiko_count) if x == max_], sep="\n")