n = int(input())
a, b = [0] * n, [0] * n
for i in range(n):
    a[i], b[i] = map(int, input().split())
m = int(input())
x, y = [0] * m, [0] * m
for i in range(m):
    x[i], y[i] = map(int, input().split())
c = [0] * m
for i in range(n):
    for j in range(m):
        c[j] += x[j] <= a[i] and y[j] >= b[i]
maxc = max(c)
if maxc == 0:
    print(0)
else:
    print('\n'.join(map(str, [i + 1 for i in range(m) if c[i] == maxc])))