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

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

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

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

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

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

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(int(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 == 2:
  a = int(input())
  b = int(input())
  print(a+b)
else:
  print("Hello World")

Solution (Python):
def main():
    n = int(input())
    a, b = "Hello ", "World"
    if n == 2:
        a, b = [int(input()) for _ in range(n)]
    print(a+b)


main()

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

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

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

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(sum(int(input()) for _ in range(2)))

Solution (Python):
a = 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 == 2:
    A = int(input())
    B = int(input())
    print(A+B)
if 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):
a = int(input())
if a == 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):
print("Hello World"if input()=="1"else sum(map(int,[input(),input()])))

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

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

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):
if int(input()) == 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,b=int(input()),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 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")
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, b = int(input()), int(input())
        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):
if int(input()) == 2:
    A = int(input())
    B = int(input())
    print(A + B)
else:
    print('Hello World')

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

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

Solution (Python):
a = int(input())
if a == 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):
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")
  exit()
else:
  a = int(input())
  b = int(input())
  print(a+b)

Solution (Python):
N=int(input())
if N==1:
  print('Hello World')
  exit()
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=int(input())
if(n==1):
    print("Hello World")
else:
    x,y=int(input()),int(input())
    print(x+y)

Solution (Python):
n=input()
if n=='1':
  print("Hello World")
else:
  a=[int(input()) for i in range(2)]
  print(a[0]+a[1])

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")
if a==2:
  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=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:
  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):
print('Hello World' if int(input())==1 else int(input())+int(input()))

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

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

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):


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):
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(sum([int(input()) for _ in range(2)]))

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
def I(): return int(sys.stdin.readline().rstrip())

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

Solution (Python):
mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    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()) for i in range(2)]
  print(a[0] + a[1])

Solution (Python):
n, *l = map(int, open(0))
print("Hello World" if n == 1 else sum(l))

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):
import sys

read = sys.stdin.read
readline = sys.stdin.readline
readlines = sys.stdin.readlines
sys.setrecursionlimit(10 ** 9)
INF = 1 << 60
MOD = 1000000007


def main():
    N = int(readline())

    if N == 1:
        print('Hello World')
    else:
        A, B = map(int, read().split())
        print(A + B)

    return


if __name__ == '__main__':
    main()

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')
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())

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

Solution (Python):
import sys


stdin = sys.stdin
def ns(): return stdin.readline().rstrip()
def ni(): return int(stdin.readline().rstrip())
def nm(): return map(int, stdin.readline().split())
def nl(): return list(map(int, stdin.readline().split()))


def main():
    print('Hello World' if ni() == 1 else ni() + ni())


if __name__ == '__main__':
    main()

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

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

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):
com=int(input())
if com==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()) for i in range(2)]
  print(a[0] + a[1])

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

Solution (Python):
if __name__ == '__main__':
	n = int(input())
	
	if n == 1:
		print("Hello World")
	else:
		ans = 0
		for i in range(2):
			ans += int(input())
		print(ans)

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)
else:
    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:
    print(sum(int(input()) for T in range(0,2)))

Solution (Python):
try: n,a,b=[int(input()) for _ in range(3)];print(a+b)
except: 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):
n = int(input())
a=0
if n==1:
  print('Hello World')
else:
  for i in range(n):
    a += int(input())
  print(a)

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

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==2:
  print(int(input())+int(input()))
else:
  print('Hello World')

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

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(int(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):






















































global FLAG_LOG
FLAG_LOG = False


def log(value):
    return
    if FLAG_LOG:
        print(str(value))


def calculation(lines):
    n = int(lines[0])
    
    

    if n == 1:
        return ['Hello World']
    else:
        A = int(lines[1])
        B = int(lines[2])
        return [A+B]



def get_input_lines():
    line = input()
    N = int(line)
    
    lines = list()
    lines.append(line)
    if N == 2:
        for _ in range(2):
            lines.append(input())
    return lines



def get_testdata(pattern):
    if pattern == 1:
        lines_input = ['1']
        lines_export = ['Hello World']
    if pattern == 2:
        lines_input = ['2', '3', '5']
        lines_export = [8]
    return lines_input, lines_export



def get_mode():
    import sys
    args = sys.argv
    global FLAG_LOG
    if len(args) == 1:
        mode = 0
        FLAG_LOG = False
    else:
        mode = int(args[1])
        FLAG_LOG = True
    return mode



def main():
    import time
    started = time.time()
    mode = get_mode()
    if mode == 0:
        lines_input = get_input_lines()
    else:
        lines_input, lines_export = get_testdata(mode)

    lines_result = calculation(lines_input)

    for line_result in lines_result:
        print(line_result)

    
    
    
    
    
    
    
    
    
    
    



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

Solution (Python):
import bisect, collections, copy, heapq, itertools, math, string, sys
input = lambda: sys.stdin.readline().rstrip() 
sys.setrecursionlimit(10**7)
INF = float('inf')
def I(): return int(input())
def F(): return float(input())
def SS(): return input()
def LI(): return [int(x) for x in input().split()]
def LI_(): return [int(x)-1 for x in input().split()]
def LF(): return [float(x) for x in input().split()]
def LSS(): return input().split()

def resolve():
    N = I()
    if N == 1:
        print('Hello World')
    else:
        A = I()
        B = I()
        print(A + B)

if __name__ == '__main__':
    resolve()

Solution (Python):
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

n = int(readline())
if n == 1:
    print('Hello World')
else:
    print(sum(list(map(int, read().split()))))

Solution (Python):
import sys

input = sys.stdin.readline


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())
print("Hello World" if N%2!=0 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):
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==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)
else:
    print("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")
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())
  ans =A+B
  print(ans)

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
def input(): return sys.stdin.readline().strip()
def mapint(): return map(int, input().split())
sys.setrecursionlimit(10**9)

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):

import sys

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):
if int(input()) == 1:
    print('Hello World')
else:
    a = [int(input()) for _ in range(2)]
    print(sum(a))

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

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

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

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

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

Solution (Python):


import copy
import random
import bisect 
import fractions 
import math
import sys
import collections
from decimal import Decimal 

mod = 10**9+7
sys.setrecursionlimit(mod) 

d = collections.deque()
def LI(): return list(map(int, sys.stdin.readline().split()))

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

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

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

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

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


solve()

Solution (Python):


import math

import itertools
from collections import deque
from collections import Counter



import bisect
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:
  x = int(input())
  y = int(input())
  print(x + y)

Solution (Python):
import sys
l=[]
for i in sys.stdin:
  l.append(int(i))
if l[0]==1:
  print("Hello World")
else:
  print(l[1]+l[2])

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):
a = int(input())

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

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


if '__main__' == __name__:
    resolve()

Solution (Python):
import sys
N = int(input())
if not (N == 1 or N == 2):
    sys.exit()

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):
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()
else:
    a = list([input() for i in range(2)])
    print(int(a[0])+int(a[1]))

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

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

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

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

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

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

if __name__ == "__main__":
    main()

Solution (Python):
import sys

ri = lambda: int(sys.stdin.readline())

if ri() == 1:
  print('Hello World')
  exit()
else:
  print(ri()+ri())

Solution (Python):
import sys
import math
import itertools
import collections
import heapq
import re
import numpy as np

rr = lambda: sys.stdin.readline().rstrip()
rs = lambda: sys.stdin.buffer.readline().split()
ri = lambda: int(sys.stdin.readline())
rm = lambda: map(int, sys.stdin.buffer.readline().split())
rl = lambda: list(map(int, sys.stdin.readline().split()))
inf = float('inf')
mod = 10**9 + 7

if ri() == 1:
  print('Hello World')
  exit()
else:
  print(ri()+ri())

Solution (Python):
n,*t=map(int,open(0))
print(n%2*'Hello World'or sum(t))

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

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

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

Solution (Python):
n = int(input())
if n == 1:
    print("Hello World")
else:
    a,b = map(int, [input() for i in range(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):
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:
    A = int(input())
    B = int(input())
    print(A + B)

Solution (Python):
x=int(input())
if x==1:
    print('Hello World')
else:
    l=[int(input()) for i in range(2)]
    print(l[0]+l[1])

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 int(input())==1 else int(input())+int(input()))

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

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

Solution (Python):

import sys
sys.setrecursionlimit(10**6)

n = int(input())

if n == 1:
    print("Hello World")
else:
    ans = 0
    ans += int(input())
    ans += int(input())
    print(ans)

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