Problem:
Score : 100 points

Problem Statement

Joisino wants to evaluate the formula "A op B".
Here, A and B are integers, and the binary operator op is either + or -.
Your task is to evaluate the formula instead of her.

Constraints

1≦A,B≦10^9

op is either + or -.

Input

The input is given from Standard Input in the following format:

A op B

Output

Evaluate the formula and print the result.

Sample Input 1

1 + 2

Sample Output 1

3

Since 1 + 2 = 3, the output should be 3.

Sample Input 2

5 - 7

Sample Output 2

-2

Solution in C++14 (GCC 5.4.1) (judge verdict: Runtime Error)

#include<bits/stdc++.h>
using namespace std;
int main(){
    int n;
	scanf("%d",&n);
	int t[n];
	int sum=0;
	for(int i=0;i<n;i++){
		scanf("%d",&t[i]);
		sum+=t[i];
	}
	int m;
	scanf("%d",&m);
	for(int i=0;i<n;i++){
		int p,x;
		scanf("%d%d",&p,&x);
		cout<<sum-t[p-1]+x;
	}
	
	return 0;
}