N=int(input())
list1=[]
for i in range(N):
    N=input()
    N=N.rstrip().split(" ")
    list1.append([int(N[0]),int(N[1])])
#print(list1)

list2=[]
M=int(input())
for j in range(M):
    M=input()
    M=M.rstrip().split(" ")
    list2.append([int(M[0]),int(M[1]),j+1])
#print(list2)

i=0
j=0
list3=[]
for i in range(len(list2)):
    list3.append([0,i+1])
#print(list3)

i=0
for i in range(len(list1)):
    
    for j in range(len(list2)):
        #print(i,j)
        if list2[j][0]<=list1[i][0] and list2[j][1]>=list1[i][1]:
            list3[j][0]=list3[j][0]+1
            #print(list3)
list3.sort(reverse=True)
if len(list3)==1:
    print(list3[0][0])
else:
    list4=[list3[0][1]]
    i=0
    for i in range(1,len(list3)):
        if list3[0][0]==list3[i][0]:
            list4.append(list3[i][1])
    list4.sort()
    for j in range(len(list4)):
        print(list4[j])