#yuki647
n=int(raw_input())
ab=[map(int,raw_input().split()) for i in xrange(n)]
m=int(raw_input())
xy=[map(int,raw_input().split()) for i in xrange(m)]
cnt=[0 for i in xrange(m)]
for i in xrange(m):
 for j in xrange(n):
  if xy[i][0]<=ab[j][0] and xy[i][1]>=ab[j][1]:
   cnt[i]+=1
res=[]
for i in xrange(m):
 if cnt[i]==max(cnt):
  res.append(i+1)
if cnt==[0]:
 print 0
else:
 for i in xrange(len(res)):
  print res[i]