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 in Python (3.4.3) (judge verdict: Runtime Error)

def cal(X,Y,H):

    for i in range(0,101): #C_x
        for j in range(0,101): #C_y
            temp=H[0]+abs(X[0]-i)+abs(Y[0]-j)
            for l in range(1,N):
                if(H[l]!=0):
                    s=H[l]+abs(X[l]-i)+abs(Y[l]-j)
                    if(temp==s):
                        temp=s
                    else:
                        break
                else:
                    if(temp-abs(X[l]-i)-abs(Y[l]-j)>0):
                        break
            else:    
                return print("{} {} {}".format(i,j,temp))

N=int(input())
X=[]
Y=[]
H=[]
for i in range(N):
    x,y,h=list(map(int,input().split()))
    X.append(x)
    Y.append(y)
    H.append(h)
cal(X,Y,H)