n = int(input())

A = [tuple(map(int, input().split())) for i in range(n)]
m = int(input())

B = []
for i in range(m):
    a, b = map(int, input().split())
    B.append((sum(map(lambda x: a <= x[0] and x[1] <= b, A)), i + 1))
mx = max(B)[0]
C = [b[1] for b in B if b[0] == mx and b[0] != 0]
print(*C if C else [0], sep="\n")