N = int(input())
member = []
for _ in range(N):
    a,b = map(int,input().split())
    member.append((a,b))
M = int(input())
dat = [0] * M
m = -1
for _ in range(M):
    x,y = map(int,input().split())
    count = 0
    for a,b in member:
        if x <= a and y >= b:
            count += 1
    dat[_] = count
    if count > m:m = count
import sys
if m == 0:
    print(0)
    exit()
for i in range(M):
    if dat[i] == m:
        print(i + 1)