n = int(input())
ab = [list(map(int, input().split())) for _ in range(n)]

m = int(input())
cand = []
cbest = 0
for i in range(m):
    p,q = map(int, input().split())
    cur = 0
    for a,b in ab:
        if p <= a and q >= b : cur += 1
    if cbest == cur :
        cand.append(i+1)
    elif cbest < cur :
        cbest = cur
        cand = [i+1]

if cbest == 0 :
    print(0)
else :
    for i in cand :
        print(i)