Problem:
 ﻿Score: 100 points    Problem Statement  In 2020 , AtCoder Inc. with an annual sales of more than one billion yen (the currency of Japan) has started a business in programming education. One day, there was an exam where a one-year-old child must write a program that prints Hello World , and a two-year-old child must write a program that receives integers A, B and prints A+B . Takahashi, who is taking this exam, suddenly forgets his age. He decides to write a program that first receives his age N ( 1 or 2 ) as input, then prints Hello World if N=1 , and additionally receives integers A, B and prints A+B if N=2 . Write this program for him.      Constraints   N is 1 or 2 .  A is an integer between 1 and 9 (inclusive).  B is an integer between 1 and 9 (inclusive).         Input  Input is given from Standard Input in one of the following formats:  1  2 A  B       Output  If N=1 , print Hello World ; if N=2 , print A+B .        Sample Input 1 1      Sample Output 1 Hello World  As N=1 , Takahashi is one year old. Thus, we should print Hello World .       Sample Input 2 2
3
5      Sample Output 2 8  As N=2 , Takahashi is two years old. Thus, we should print A+B , which is 8 since A=3 and B=5 .

Solution (Python):
i=input;print(eval(i()+'+'+i())if'1'<i()else'Hello World')

Solution (Python):
*a,=map(int,open(0).read().split())
print(a[1]+a[2]if a[0]>1else'Hello World')

Solution (Python):

mode = input()
if mode == 1:
	print "Hello World"
else:
	num1 = input()
	num2 = input()
	print(num1 + num2)

Solution (Python):
n = int(input())

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

Solution (Python):
def main():
    N = int(input())
    if N == 1 :
        print("Hello World")
    elif N == 2 :
        A = int(input())
        B = int(input())
        print(A + B)
    else:
        pass

if __name__ == '__main__':
    main()

Solution (Python):
N=int(input())
if N==1:
    print("Hello World")
if N==2:
    A=int(input())
    B=int(input())
    print(A+B)

Solution (Python):
if input() == '1':
  print('Hello World')
else:
  print(int(input())+int(input()))

Solution (Python):
N = int(input())

if N == 1:
  print("Hello World")
else:
  A= int(input())
  B= int(input())
  print(A+B)

Solution (Python):



from math import *
from string import *
from itertools import *
from copy import *

N = int(input())
if(N == 1):
	print("Hello World")
else:
	A = int(input())
	B = int(input())
	print(A+B)

Solution (Python):
n = int(input())
print("Hello World" if n == 1 else (int(input()) + int(input())))

Solution (Python):
N = input()
if int(N) == 1:
  print("Hello World")
elif int(N) == 2:
  A = input()
  B = input()
  print(int(A)+int(B))

Solution (Python):
N = input()
if int(N)==1:
    print("Hello World")
elif int(N)==2:
    A = input()
    B = input()
    print(int(A)+int(B))

Solution (Python):
N = int(input())
if N == 1:
    print('Hello World')
else :
    a = int(input())
    b = int(input())
    print(a + b)

Solution (Python):
N = int(input())
if N == 1:
    print('Hello World')
else:
    a = int(input())
    b = int(input())
    print(a + b)

Solution (Python):
N=int(input())
if N==1:
    print('Hello World')
else:
    A=int(input())
    B=int(input())
    print(A+B)

Solution (Python):
N = int(input())

if N==1:
 print ("Hello World")
elif N==2:
 N1 = int(input())
 N2 = int(input())
 print (N1+N2)

Solution (Python):
N = int(input())
if N == 1:
    print('Hello World')
else:
    a = int(input())
    b = int(input())
    print(a + b)

Solution (Python):
ina = input()
if ina == "1":
  print("Hello World")
else:
  inb = int(input())
  inc = int(input())
  print(inb + inc)

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

Solution (Python):
N = input()
if N == 1:
    print("Hello World")
else:
    A = input()
    B = input()
    print(A+B)

Solution (Python):
n = int(input())
if n == 1: print("Hello World")
else: print(sum([int(input()) for i in range(2)]))

Solution (Python):
"""
a=[]
for i in range():
	a.append(int(input()))

if a[0]!=1:
	print(a[1]+a[2])
else:
	print("Hello World")
"""
a=int(input())
if a==1:
	print("Hello World")
else:
	b=int(input())
	c=int(input())
	print(b+c)

Solution (Python):
N = int(input())
if N == 1:
    print('Hello World')
else:
    print(int(input()) + int(input()))

Solution (Python):
v = int(input())
if v == 1:
    print("Hello World")
else:
    a = int(input())
    b = int(input())
    print(a+b)

Solution (Python):
N = int(input())

if N == 1:
    print('Hello World')
else:
    A = int(input())
    B = int(input())
    print((A + B))

Solution (Python):
import sys

n = int(input())
if n==1:
    print("Hello World")
    sys.exit()

if n==2:
    a = int(input())
    b = int(input())
    print(a+b)

Solution (Python):
N = int(input())
if N ==1:
    print('Hello World')
elif N==2:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):


N = int(input())
if N == 1:
    print("Hello World")
else:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):

import sys
try: from typing import Any, Union, List, Tuple, Dict
except ImportError: pass
sys.setrecursionlimit(10**6)
def debug(*args): print(*args, file=sys.stderr)
def exit(): sys.exit(0)


N = int(input())
if N == 1:
    print("Hello World")
    exit()
else:
    A = int(input())
    B = int(input())
    print(A+B)

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

Solution (Python):
import sys

N = int(input())

if N == 1:
    print("Hello World")
    sys.exit()
else:
    A = int(input())
    B = int(input())
    
    print(A+B)

Solution (Python):
N = int(input())
if (N == 1):
    print('Hello World')
else:
    A = int(input())
    B = int(input())
    print(A + B)

Solution (Python):
N = int(input())
if N == 1:
    print('Hello World')
else:
    A = int(input())
    B = int(input())
    C = A + B
    print(C)

Solution (Python):
old = int(input())
if old==1:
    print("Hello World")
else:
    a = int(input())
    b = int(input())
    print(a+b)

Solution (Python):
n = int(input())
if n == 1:
    print("Hello World")
else:
    A=int(input())
    B=int(input())
    print(A+B)

Solution (Python):
N = int(input())

if N == 1:
    print('Hello World')
elif N == 2:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
N = int(input())

if N == 1:
    print("Hello World")

elif N == 2:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):

n = int(input())

if n==1:
    print('Hello World')
else:
    x = int(input())
    y = int(input())
    print(x+y)

Solution (Python):
a = int(input())
if a == 1:
	print("Hello World")
else:
	A = int(input())
	B = int(input())
	print(A+B)

Solution (Python):
N=int(input())
if N==1:
    print("Hello World")
else:
    a=int(input())
    b=int(input())
    print(a+b)

Solution (Python):
import sys
N = int(sys.stdin.readline().strip())

if N == 1:
  print("Hello World")
else:
  A, B = sys.stdin.readlines()
  A = int(A)
  B = int(B)
  print(str(A+B))

Solution (Python):
N = int(input())

if (N == 1):
    print("Hello World")
else:
    A = int(input())
    B = int(input())
    print(A + B)

Solution (Python):
n = int(input())

if n == 1:
    print("Hello World")
else:
    a = int(input())
    b = int(input())
    print("{0}".format(a + b))

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

Solution (Python):
N = int(input())
if N == 1:
    print('Hello World')
elif N == 2:
    A = int(input(''))
    B = int(input(''))
    print(A + B)

Solution (Python):
a = int(input())

if a == 1:
    print('Hello World')
else:
    sumsum = 0
    for i in range(2):
        sumsum += int(input())
        
    print(sumsum)

Solution (Python):
n = int(raw_input())
if n == 1:
    print 'Hello World'
else:
    a = int(raw_input())
    b = int(raw_input())
    print a+b

Solution (Python):
N = int(input())
if N == 1:
	print("Hello World")
else:
	a = int(input())
	b = int(input())
	print(a+b)

Solution (Python):
if input() == 1:
	print 'Hello World'
else:
	print input()+input()

Solution (Python):
N = int(input())
if N == 1:
  print("Hello World")
else:
  A = int(input())
  B = int(input())
  print(A+B)

Solution (Python):
w=int(input())
if w == 1:
    print("Hello World")
elif w == 2:
    a=int(input())
    b=int(input())
    print(a+b)

Solution (Python):
n = int(input())
if n == 1:
	print("Hello World")
elif n == 2:
	a = int(input())
	b = int(input())
	print(a+b)

Solution (Python):
N = int(input())
if N ==1:
    print('Hello World')
else:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
age = int(input())
if age == 1:
  print("Hello World")
else:
  a=int(input())
  b=int(input())
  print(a+b)

Solution (Python):
n = int(input())
if n == 1:
    print('Hello World')
else:
    a = int(input())
    b = int(input())
    print('{}'.format(a + b))

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

Solution (Python):
N = int(input())


if N == 1:
    print('Hello World')
elif N == 2:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
x = int(input())
if x == 1:
  print("Hello World")
else:
  print( int(input()) + int(input()) )

Solution (Python):
N=int(input())
if N==1:
   print("Hello World")
if N==2:
   A=int(input())
   B=int(input())
   print(A+B)

Solution (Python):
def fun(a):
    if a == 1:
        print('Hello World')
    else :
        A = int(input())
        B = int(input())
        print(A+B)

N = int(input())
fun(N)

Solution (Python):
N = int(input())


if(N == 1):
	print("Hello World")
else:
	A = int(input())
	B = int(input())
	print(A+B)

Solution (Python):
N = int(input())

if(N==1):
    print("Hello World")
elif(N==2):
    A =int(input())
    B=int(input())
    C=A+B
    print(C)

Solution (Python):
n  = int(raw_input())
if n == 1:
  print('Hello World')
else:
  a = int(raw_input())
  b = int(raw_input())
  print(a+b)

Solution (Python):

n = int(input())
if n == 1:
    print('Hello World')
else:
    print(int(input())+int(input()))

Solution (Python):
N=int(input())
if N==1:
  print("Hello World")
else:
  A=int(input())
  B=int(input())
  print(A+B)

Solution (Python):
N = int(input())
if N == 1:
    print('Hello World')
elif N == 2:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
N=int(input())

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

Solution (Python):
a=int(input())
if(a==1):
  print("Hello World")
else:
  A=int(input())
  B=int(input())
  print(A+B)

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

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

Solution (Python):
n = int(input())
 
if n == 1:
  print("Hello World")
elif n == 2:
  a = int(input())
  b = int(input())
  print(a+b)

Solution (Python):
n = int(input())

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

Solution (Python):
if int(input()) == 2:
    print(int(input())+int(input()))
else:
    print("Hello World")

Solution (Python):
N = int(input())

if N == 1:
    print('Hello World')
elif N == 2:
    print(int(input()) + int(input()))

Solution (Python):

N = int(input())

if N == 1:
    print("Hello World")
elif N == 2:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
N = int(input())

if N==1:
    print("Hello World")
    exit()

A = int(input())
B = int(input())

print(A+B)

Solution (Python):
ipnum = input()

if ipnum == "1":
    print("Hello World")
elif ipnum =="2":
    num1 = int(input())
    num2 = int(input())
    print(num1 + num2)
else:
    print("error")

Solution (Python):
n = int(input())
if n == 1:
  print('Hello World\n')
else:
  a = int(input())
  b = int(input())
  print(a + b)

Solution (Python):
N = int(input(""))

if N == 1:
    print('Hello World')
elif N == 2:
    A = int(input(""))
    B = int(input(""))
    print(A + B)

Solution (Python):
N = int(input())
if N == 1:
  print("Hello World")
elif N == 2:
  A = int(input())
  B = int(input())
  print(A + B)

Solution (Python):
if int(input())==1:print("Hello World")
else:print(int(input())+int(input()))

Solution (Python):
if input() == "1":
  print("Hello World")
else:
  print(int(input())+int(input()))

Solution (Python):
N = int(input())
if N == 1:
  print('Hello World')
else:
  A = int(input())
  B = int(input())
  print(A+B)

Solution (Python):
n=int(input())
if n==1:
	print("Hello World")
elif n==2:
	a=int(input())
	b=int(input())
	print(a+b)

Solution (Python):
n = int(input())

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

Solution (Python):
n = int(input())
if n == 2:
    a = int(input())
    b = int(input())
    print(a+b)
elif n == 1:
    print("Hello World")

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

Solution (Python):
N = int(input())
if N == 1:
    print("Hello World")
else:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
age = int(input())
A = 0
B = 0
if age == 1:
    print("Hello World")

if age == 2:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
N = int(input())

if N==1:
    print('Hello World')
elif N==2:
    A = int(input())
    B = int(input())
    print(A + B)

Solution (Python):
x = input()
if int(x) == 1:
    print("Hello World")
else:
    a = int(input())
    b = int(input())
    print(a + b)

Solution (Python):
N = int(input())
if N == 1:
  print('Hello World')
else:
  A = int(input())
  B = int(input()) 
  print(A+B)

Solution (Python):
N = int(input())

if N == 1:
    print('Hello World')
elif N == 2:
    A = int(input())
    B = int(input())
    print(A + B)
else:
    pass

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

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

Solution (Python):
def getinputdata():

    array_result = []    
    array_result.append(input().split(" "))

    flg = True

    try:
        while flg:

            data = input()

            if(data != ""):
                
                array_result.append(data.split(" "))

                flg = True

            else:

                flg = False
    finally:

        return array_result

arr_data = getinputdata()

n=int(arr_data[0][0])

print("Hello World" if n==1 else int(arr_data[1][0])+int(arr_data[2][0]))

Solution (Python):
n = int(input())
if n == 1:
	print("Hello World")
else:
	print(int(input()) + int(input()))

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

Solution (Python):
N = int(input())
if N == 1:
    print("Hello World")
else:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
if int(input()) - 1:
    A = int(input())
    B = int(input())
    print(A + B)
else:
    print('Hello World')

Solution (Python):
N = input()
if N == "1":
    print("Hello World")
elif N == "2":
    a = int(input())
    b =int(input())
    print(a+b)

Solution (Python):
age = int(input())

if age == 1 :
    print('Hello World')
elif age ==2:
    A=int(input())
    B=int(input())
    print(A+B)

Solution (Python):
n = int(input())

if n == 2:
    a = int(input())
    b = int(input())
    print(a+b)
else:
    print('Hello World')

Solution (Python):
N = input()

if N == "1":
    print("Hello World")
else:
    A = input()
    B = input()
    print(str(int(A) + int(B)))

Solution (Python):
n = int(input())
if(n == 1) :
    print("Hello World")
if(n == 2) :
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
N = int(input())
if N==1:
    print("Hello World")
if N==2:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):



N = int(input())
if N==1:
    print("Hello World")
elif N==2:
    
    a = int(input())
    b = int(input())
    print("{}".format(a+b))

Solution (Python):
N = int(input())
if N == 1:
    print('Hello World')
else:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
print"Hello World"if input()==1 else input()+input()

Solution (Python):
n = int(input())
if n == 1:
    print("Hello World")
    exit()
if n == 2:
    a = int(input())
    b = int(input())
    print(a + b)
    exit()

Solution (Python):

N = input()
if N == "1": print("Hello World")
else:
    A = int(input())
    B = int(input())
    print(A + B)

Solution (Python):
if input()=='1':
  print("Hello World")
else:
  a=int(input())
  b=int(input())
  print(a+b)

Solution (Python):
import math,string,itertools,fractions,heapq,collections,re,array,bisect,sys,random,time,copy,functools

sys.setrecursionlimit(10**7)
inf = 10**20
eps = 1.0 / 10**13
mod = 10**9+7
dd = [(-1,0),(0,1),(1,0),(0,-1)]
ddn = [(-1,0),(-1,1),(0,1),(1,1),(1,0),(1,-1),(0,-1),(-1,-1)]

def LI(): return [int(x) for x in sys.stdin.readline().split()]
def LI_(): return [int(x)-1 for x in sys.stdin.readline().split()]
def LF(): return [float(x) for x in sys.stdin.readline().split()]
def LS(): return sys.stdin.readline().split()
def I(): return int(sys.stdin.readline())
def F(): return float(sys.stdin.readline())
def S(): return input()
def pf(s): return print(s, flush=True)


def main():
    n = I()
    if n == 1:
        return 'Hello World'
    a = I()
    b = I()

    return a + b


print(main())

Solution (Python):
N = int(input())

if N == 1:
  print("Hello World")
  exit(0)

A = int(input())
B = int(input())
print(A+B)

Solution (Python):
N = input()

if "1" == N:
    print("Hello World")
elif "2" == N:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
n=int(input())
if n==1:
  print('Hello World')
else:
    print(int(input())+int(input()))

Solution (Python):
n = int(input())

if n == 1:
  print('Hello World')
else:
  A = int(input())
  B = int(input())
  print(A+B)

Solution (Python):
a = int(input())
if a == 1:
    print("Hello World")
else:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
N = int(input())
if N == 1:
    print('Hello World')
else:
    A = int(input())
    B = int(input())
    print(A + B)

Solution (Python):
if int(input()) == 1:
    print('Hello World')
else:
    print(int(input()) + int(input()))

Solution (Python):
if int(input()) == 1:
    print('Hello World')
else:
    ans = int(input())
    print(ans+int(input()))

Solution (Python):
print('Hello World' if input() == '1' else int(input())+int(input()))

Solution (Python):
n = int(input())

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

Solution (Python):



def get_line():
    return input()


def get_tokens():
    return get_line().split()


def get_ints():
    return [int(_) for _ in get_tokens()]


def main():

    n, = get_ints()
    if n == 1:
        print('Hello World')
    else:    
        A, = get_ints()
        B, = get_ints()
        print(A+B)
        
if __name__ == '__main__':
    main()

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

Solution (Python):
N = int(input())
ans = 'Hello World' if N == 1 else int(input()) + int(input())
print(ans)

Solution (Python):
n = input()

if n is'1':
  print("Hello World")
elif n is '2':
  a = int(input())
  b = int(input())
  print(a + b)

Solution (Python):
n=int(input())
if n==1:print('Hello World')
else:
    print(int(input())+int(input()))

Solution (Python):
N = int(input())

if N == 1:
    print("Hello World")

if N == 2:
    A = int(input())
    B = int(input())
    print(A + B)

Solution (Python):


n=int(raw_input())
if n==1:
 print 'Hello World'
else:
 a=int(raw_input())
 b=int(raw_input())
 print a+b

Solution (Python):
N = int(input())

if N == 1:
    print("Hello World")
else:
    A = int(input())
    B = int(input())
    print(A + B)

Solution (Python):
p=int(input())
if p==1:
    print('Hello World')
else:
    a=int(input())
    b=int(input())
    print(a+b)

Solution (Python):
N=int(input())

if N==1:
    print("Hello World")
else:
    A=int(input())
    B=int(input())
    print(A+B)

Solution (Python):
a=int(input());print(eval("A'+Hienltl(oi nWpourtl(d)')"[a::2]*a))

Solution (Python):
i=lambda:int(input());print('Hello World'*(1&i())or i()+i())

Solution (Python):
print'Hello World'*(1&input())or input()+input()

Solution (Python):
N = int(input())

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

Solution (Python):
print'Hello World'*-~-~-input()or input()+input()

Solution (Python):
i=lambda:int(input());print(i()+i()if~-i()else'Hello World')

Solution (Python):
i=lambda:int(input());print(i()+i()if i()-1else"Hello World")

Solution (Python):
print input()+input()if~-input()else'Hello World'

Solution (Python):
print input()+input()if input()-1else'Hello World'

Solution (Python):
print("Hello World"if input()=="1"else eval("+int(input())"*2))

Solution (Python):
s = 'Hello World'
N = int(raw_input())
if N == 1:
    print(s)
elif N == 2:
    A = int(raw_input())
    B = int(raw_input())
    print(A+B)

Solution (Python):
print input()+input()if input()-1 else'Hello World'

Solution (Python):
n = int(input())
if n == 1:
    print("Hello World")
elif n == 2:
    a = int(input())
    b = int(input())
    print(a+b)

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

Solution (Python):
N = int(input())
if N == 1:
    print('Hello World')
elif N == 2:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
N = int(input())

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

Solution (Python):
N=input()
if N==1:
	print "Hello World"
else:
	A=input()
	B=input()
	print A+B

Solution (Python):
x = int(input())
if x==1:
    print('Hello World')
else:
    a = int(input())
    b = int(input())
    print(a+b)

Solution (Python):
N = int(input())
if N == 1:
    print("Hello World")
if N == 2:
    A = int(input())
    B = int(input())
    print(A + B)

Solution (Python):
N = input()

if N == '1':
    print('Hello World')
else:
    print(int(input()) + int(input()))

Solution (Python):
N = int(input())

if N == 1:
    print('Hello World')
elif int(N) == 2:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
a=int(input())
if a==1:
    print("Hello World")
else:
    b=int(input())
    c=int(input())
    print(int(b+c))

Solution (Python):
N = int(input())

if N == 1:
    print('Hello World')
else:
    A = int(input())
    B = int(input())
    print(A + B)

Solution (Python):
N=int(input())


if (N==1):
    print("Hello World")
else:
    A=int(input())
    B=int(input())
    print(A+B)

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

Solution (Python):
N = int(input())
if N == 1:
  print('Hello World')
else:
  A = int(input())
  B = int(input())
  print(A + B)

Solution (Python):
N=int(input())
if N==1:
    print("Hello World")
else:
    A=int(input())
    B=int(input())
    print(A+B)

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

Solution (Python):


n = int(input())

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

	print(a+b)

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

Solution (Python):
N = int(input())

if N == 1:
  print("Hello World")
else:
  A = int(input())
  B = int(input())
  print(A+B)

Solution (Python):
Q = input()
if Q == '1':
    print('Hello World')
elif Q == '2':
    A = int(input())
    B = int(input())
    print(A + B)

Solution (Python):
n = int(input())

if n == 1:
    print("Hello World")
    exit(0)

else:
    a = int(input())
    b = int(input())
    print(a + b)

Solution (Python):
N = int(input())
if N == 1:
    print("Hello World")
else:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
n=int(input())
if n==1:
  print('Hello World')
else:
  a=int(input())
  b=int(input())
  print(a+b)

Solution (Python):
old = int(input())
if old == 1:
    print('Hello World')
    exit(0)
else:
    print(int(input()) + int(input()))

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

Solution (Python):
N = int(input())

if N == 1:
    print("Hello World")
else:
    A = int(input())
    B = int(input())
    
    print(A+B)

Solution (Python):
N=int(input())
if N == 1:
  print('Hello World')
else:
  A=int(input())
  B=int(input())
  print(A + B)

Solution (Python):
n = int(input())

if n == 1:
    print("Hello World")

if n == 2:
    a = int(input())
    b = int(input())
    print(a + b)

Solution (Python):
N = int(input())
if (N == 1): 
    print("Hello World")
else:
    a = int(input())
    b = int(input())
    print(a+b)

Solution (Python):
N=int(input())
sum_a=0
if N==1:
    print("Hello World")
else:
    for _ in range(2):
        a=int(input())
        sum_a+=a
    print(sum_a)

Solution (Python):
N = int(input())
if N==1:
    print("Hello World")
if N==2:
    A,B = [int(input()) for i in range(2)]
    print(A+B)

Solution (Python):
n=int(input())

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

Solution (Python):
I=input()
if I=='1':
 print('Hello World')
else:
  A=input()
  B=input()
  print(int(A)+int(B))

Solution (Python):



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


if __name__ == '__main__':
    main()

Solution (Python):
n = int(input())

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

Solution (Python):
print("Hello World"if input()=="1"else(int(input())+int(input())))

Solution (Python):
num=int(input())
if(num==1):
    print('Hello World')
    exit(0)
A=int(input())
B=int(input())
print(A+B)

Solution (Python):
N = int(input())
if N == 1:
    print("Hello World")
elif N == 2:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
if input() == '1':
  print('Hello World')
else:
  print(int(input())+int(input()))

Solution (Python):
N = int(input())

if N == 1:
    print("Hello World")
else:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
import sys
import socket

hostname = socket.gethostname()

if hostname == 'F551C':
    sys.stdin = open('a1.in')


def read_int_list():
    return list(map(int, input().split()))


def read_str_list():
    return input().split()


def read_int():
    return int(input())


def read_str():
    return input()


def main():
    n = read_int()
    if n == 1:
        res = 'Hello World'
    else:
        a = read_int()
        b = read_int()
        res = a + b
    print(res)


main()

Solution (Python):
age=int(input())
if age==1:
    print("Hello World")
else:
    a=int(input())
    b=int(input())
    print(a+b)

Solution (Python):
import sys
from collections import deque
import copy

def get_read_func(fileobject):
    if fileobject == None :
        return raw_input
    else:
        return fileobject.readline


def main():
    if len(sys.argv) > 1:
        f = open(sys.argv[1])
    else:
        f = None
    read_func = get_read_func(f);
    input_raw = read_func().strip().split()
    N = int(input_raw[0])
    if N == 1:
        print "Hello World"
    else:
        input_raw = read_func().strip().split()
        A = int(input_raw[0])
        input_raw = read_func().strip().split()
        B = int(input_raw[0])
        print A+B

if __name__ == '__main__':
    main()

Solution (Python):
a = int(input())
if a == 1:
    print('Hello World')
else:
    b = int(input())
    c = int(input())
    print(b + c)

Solution (Python):
n = int(input())
if n == 1:
    print('Hello World')
elif n == 2:
    a = int(input())
    b = int(input())
    print(a + b)

Solution (Python):
age=int(input())
if(age==1): print('Hello World')
if(age==2): A=int(input())
if(age==2): B=int(input())
if(age==2): print(A+B)

Solution (Python):
N = int(input())
if N ==1:
  print('Hello World')
else:
  A = int(input())
  B = int(input())
  print(A+B)

Solution (Python):



import sys

n = int(sys.stdin.readline().strip())

if n == 1:
    print("Hello World")
elif n == 2:
    i = int(sys.stdin.readline().strip())
    j = int(sys.stdin.readline().strip())
    print(i + j)

Solution (Python):
N = int(input())
if N ==1:
  print("Hello World")
elif N == 2:
  A = int(input())
  B = int(input())
  print(A+B)

Solution (Python):
n = int(input())

if n==1:
  print("Hello World")
  
else:
  a, b = [int(input()) for _ in range(2)]
  print(a+b)

Solution (Python):
a = int(input())
if a == 1:
    print("Hello World")
elif a == 2:
	b = int(input())
	c = int(input())
	print(b+c)

Solution (Python):
n = int(input())
if n == 1:
    print("Hello World")
elif n == 2:
    a = int(input())
    b = int(input())
    print(a + b)

Solution (Python):
N = int(input())
if(N == 1):
    print("Hello World")
else:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
n=int(input())
if n==1:
  print('Hello World')
else:
  a=int(input());b=int(input())
  print(a+b)

Solution (Python):
if int(input()) == 1:
  print('Hello World')
else:
  print(int(input())+int(input()))

Solution (Python):
N = int(input())

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

Solution (Python):
n = int(input())
if n == 1:
    print('Hello World')
    exit()

a = int(input())
b = int(input())

print(a+b)

Solution (Python):
N = int(input())

if N == 1:
    print('Hello World')
elif N==2:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):
N = int(input())
 
if N==1:
  print('Hello World')
 
else:
  A = int(input())
  B = int(input())
  print(A+B)

Solution (Python):
n = int(input())

if(n == 1):
    print('Hello World')
elif(n == 2):
    a = int(input())
    b = int(input())
    print(a+b)

Solution (Python):
n = int(input())
if n == 1:
    print('Hello World')
elif n == 2:
    a, b = int(input()), int(input())
    print(a + b)
else:
    print()

Solution (Python):
N = int(input())
if N==1:
    print('Hello World')
else:
    A = int(input())
    B = int(input())
    print(A+B)

Solution (Python):


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

Solution (Python):
n = int(input())
if n == 1:
    print('Hello World')
if n == 2:
    A = int(input())
    B = int(input())
    print(A + B)

Solution (Python):
N = input()

if N == '1':
    print("Hello World")

else:
    print(int(input()) + int(input()))

Solution (Python):
a = int(input())
if a == 1:
    print('Hello World')
else:
    b = int(input())
    c = int(input())
    print(b+c)

Solution (Python):

N = int(input())


if N == 1:
    print('Hello World')
else:
    A = int(input())
    B = int(input())

    print(A+B)

Solution (Python):


def main():
	N = int(input())
	
	if N == 1:
		print("Hello World")

	else:
		a = int(input())
		b = int(input())
		sum = a + b
		print(sum)
	
if __name__ == "__main__":
	main()