A + B is often used as an example of the easiest problem possible to show some contest platform. However, some scientists have observed that sometimes this problem is not so easy to get accepted. Want to try?

Input

The input contains two integers a and b (0 ≤ a, b ≤ 103), separated by a single space.

Output

Output the sum of the given integers.

Examples

Input

5 14


Output

19


Input

381 492


Output

873
import sys
import time
from pprint import pprint
from sys import stderr
from itertools import combinations

INF = 10 ** 18 + 3
EPS = 1e-10
MAX_CACHE = 10 ** 9


# Decorators
def time_it(function, output=stderr):
    def wrapped(*args, **kwargs):
        start = time.time()
        res = function(*args, **kwargs)
        elapsed_time = time.time() - start
        print('"%s" took %f ms' % (function.__name__, elapsed_time * 1000),
              file=output)
        return res

    return wrapped





@time_it
def main():
    print(sum(map(int, input().split())))


def set_input(file):
    global input
    input = lambda: file.readline().strip()


def set_output(file):
    global print
    local_print = print

    def print(*args, **kwargs):
        kwargs["file"] = kwargs.get("file", file)
        return local_print(*args, **kwargs)


if __name__ == '__main__':
    set_input(open("input.txt", "r") if "MINE" in sys.argv else sys.stdin)
    set_output(sys.stdout)
    main()
