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 (Clang 3.8.0) (judge verdict: Wrong Answer)

//Atcoder Begineer Contest050
//B - Contest with Drinks Easy
//2018/06/26/11:22

#include<stdio.h>
#define MAX 100

int main(void)
{
  int i,j;
  int N,M;
  int res[MAX]={};
  int T[MAX],P[MAX],X[MAX];

  scanf("%d",&N);

  for(i=0;i<N;i++){
    scanf("%d",&T[i]);
  }

  scanf("%d",&M);

  for(i=0;i<M;i++){
    scanf("%d %d",&P[i],&X[i]);
  }

  for(i=0;i<M;i++){
    for(j=0;j<N;j++){
      if(j == i){
        res[i] += T[j];
      }
      else{
        res[i] += X[j];
      }
    }
  }

  for(i=0;i<M;i++){
    printf("%d\n",res[i]);
  }

  return 0;
}