import itertools

import math

import fractions

import functools

import copy



n = int(eval(input()))



if n == 1:

    print("Hello World")

else:

    a = int(eval(input()))

    b = int(eval(input()))

    print((a+b))

def main():

    n = int(eval(input()))

    # h, w, k = map(int, input().split())

    # a = list(map(int, input().split()))

    # s = input()



    if n == 1:

        print("Hello World")

    else:

        a = int(eval(input()))

        b = int(eval(input()))

        print((a+b))





if __name__ == '__main__':

    main()

import itertools
import math
import fractions
import functools
import copy

n = int(eval(input()))
if n == 1:
    print("Hello World")
else:
    a = int(eval(input()))
    b = int(eval(input()))
    print((a + b))

def main():
    n = int(eval(input()))
    # h, w, k = map(int, input().split())
    # a = list(map(int, input().split()))
    # s = input()
    if n == 1:
        print("Hello World")
    else:
        a = int(eval(input()))
        b = int(eval(input()))
        print((a + b))


if __name__ == "__main__":
    main()

-import itertools -import math -import fractions -import functools -import copy +def main(): +    n = int(eval(input())) +    # h, w, k = map(int, input().split()) +    # a = list(map(int, input().split())) +    # s = input() +    if n == 1: +        print("Hello World") +    else: +        a = int(eval(input())) +        b = int(eval(input())) +        print((a + b)) -n = int(eval(input())) -if n == 1: -    print("Hello World") -else: -    a = int(eval(input())) -    b = int(eval(input())) -    print((a + b)) + +if __name__ == "__main__": +    main()