N = int(input())
ABs = [[int(j) for j in input().split()] for i in range(N)]
M = int(input())
XYs = [[int(j) for j in input().split()] for i in range(M)]

def be_wanted(A, B, X, Y):
    if X <= A and B <= Y:
        return True
    else:
        return False

def argmax_s(X):
    tmp = -99999
    for i, x in enumerate(X):
        if tmp < x:
            tmp = x
            res = [i]
        elif tmp == x:
            res.append(i)
    return res
    
    

point = [0 for i in range(M)]
for i, xy in enumerate(XYs):
    for ab in ABs:
        if be_wanted(ab[0], ab[1], xy[0], xy[1]):
            point[i] += 1
            
if sum(point) == 0:
    print(0)
else:
    for i in (argmax_s(point)):
        print(i+1)