def main():
    N = int(input())
    AB = tuple(tuple(map(int, input().split())) for _ in [0] * N)
    M = int(input())
    XY = {int(i): tuple(map(int, input().split())) for i in range(M)}

    ab = dict()
    for i, (a, b) in enumerate(sorted(AB, reverse=True)):
        ab[i] = (a, b)

    men = [0] * M
    for i in range(M):
        x, y = XY[i]
        for j in range(N):
            a, b = ab[j]
            if x <= a:
                if y >= b:
                    men[i] += 1
            else:
                break

    max_ = max(men)
    if not max_:
        print(0)
    else:
        idx = [i for i, x in enumerate(men) if x == max_]
        for i in idx:
            print(i + 1)

main()