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)

dct = {}
for i in range(m):
    for j in range(n):
        if ment[i][0] <= cond[j][0] and ment[i][1] >= cond[j][1]:
            dct.setdefault(i+1, 0)
            dct[i+1] += 1

if len(dct) == 0:
    print(0)
else:
    res = [i for i,j in dct.items() if j == max(dct.values())]
    for i in res:
        print(i)