N = int(input())

a = [0 for i in range(N)]
b = [0 for i in range(N)]

for i in range(N):
    a[i], b[i] = list(map(int, input().split()))

M = int(input())

x = [0 for i in range(M)]
y = [0 for i in range(M)]
for i in range(M):
    x[i], y[i] = list(map(int, input().split()))

cnt = [0 for i in range(M)]

for i in range(N):
    for j in range(M):
        if x[j] <= a[i] and y[j] >= b[i]:
            cnt[j] += 1
ma = 0
for i in range(M):
    ma = max(ma, cnt[i])

if ma == 0:
    print(0)
else:
    ans = []
    for i in range(M):
        if ma == cnt[i]:
            ans.append(i)
    for idx in ans:
        print(idx + 1)