n = int(input())
l = [list(map(int,input().split())) for _ in range(n)]
m = int(input())
c=[0]*m
for i in range(m):
	p,s=map(int, input().split())
	t=0
	for j in range(n):
		if p<=l[j][0] and s>=l[j][1]: t+=1
	c[i]=t	
if sum(c)==0: print(0)
else: 
	for i in range(m):
		if c[i]==max(c): print(i+1)