meet100ni

#!/bin/python3

import math
import os
import random
import re
import sys

meet100ni

if __name__ == '__main__':
    a = int(input())
    b = int(input())

    print(a + b)
    print(a - b)
    print(a * b)

meet100ni

if __name__ == '__main__':
    a = int(input())
    b = int(input())

    print(a // b)
    print(a / b)

meet100ni

if __name__ == '__main__':
    n = int(input())

    for i in range(n):
        print(i * i)

meet100ni

def is_leap(year):
    leap = False
    
    return year % 4 == 0 and (year % 400 == 0 or year % 100 != 0)

year = int(input())
print(is_leap(year))

meet100ni

if __name__ == '__main__':
    n = int(input())
    for i in range(n+1):
        if i==0:
            continue
        print(i, end="")
        

meet100ni

if __name__ == '__main__':
    n = int(input())
    for i in range(n+1):
        if i==0:
            continue
        print(i, end="")
        

meet100ni

# Enter your code here. Read input from STDIN. Print output to STDOUT
"""
For more understanding: https://www.programiz.com/python-programming/methods/set/symmetric_difference
"""

# '_' is a variable and input().split() will separate input from the console
_, a = input(), set(input().split())
_, b = input(), set(input().split())
print(len(a.symmetric_difference(b)))

meet100ni

if __name__ == '__main__':
    (_, A) = (int(input()),set(map(int, input().split())))
    B = int(input())
    for _ in range(B):
        (command, newSet) = (input().split()[0],set(map(int, input().split())))
        getattr(A, command)(newSet)

    print (sum(A))

meet100ni

# Enter your code here. Read input from STDIN. Print output to STDOUT

K = int(input())
set_S = set()
sumlist_S = 0
for i in input().split():
    I = int(i)
    set_S.add(I)
    sumlist_S += I