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 (GCC 5.4.1) (judge verdict: Runtime Error)

#include<stdio.h>

int main(void){
  int N,T[105],M,P[105],X[105],i,total=0;
  scanf("%d",&N);
  for(i=0;i<N;i++){
    scanf("%d",&T[i]);
    total+=T[i];
  }
  scanf("%d",&M);
  for(i=0;i<M;i++){
    scanf("%d %d",&P[i],&X[i]);
  }
  for(i=0;i<M;i++){
    printf("%d\n",total-T[P[i]-1]+X[i]);
  }
  return 0;
}