n = int(input())

cond = []
for i in range(n):
    inp = list(map(int,input().split()))
    cond.append(inp)

m = int(input())
ment = []
for i in range(m):
    inp = list(map(int,input().split()))
    ment.append(inp)

cnt  = [0 for i in range(m)]
for i in range(m):
    for j in range(n):
        if ment[i][0] <= cond[j][0] and ment[i][1] >= cond[j][1]:
             cnt[i] += 1

mx = max(cnt)
ls = [n for n,i in enumerate(cnt) if i == mx ]

if cnt == [0]:
    print(0)
else:
    for i in ls:
        print(i+1)