# -*- coding: utf-8 -*-
"""
No.353 ヘイトプラス
https://yukicoder.me/problems/no/353

"""
import sys
from sys import stdin
input = stdin.readline


def main(args):
    A, B = map(int, input().split())
    B *= -1
    print(A - B)


if __name__ == '__main__':
    main(sys.argv[1:])