def countofElements(listInput1, listInput2):
    count = 0
    for element in listInput1:
        if element not in listInput2:
            count += 1
    for element in listInput2:
        if element not in listInput1:
            count += 1
    return count

def main():
    listInput1_size = int(input())
    listInput1 = list(map(int, input().split()))
    listInput2_size = int(input())
    listInput2 = list(map(int, input().split()))
    result = countofElements(listInput1, listInput2)
    print(result)

 main()

Hello Guys...As there is news spreading that telegram will be banned. It is not confirmed that it will ban or not but the owner of telegram has been arrested.