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: Wrong Answer)

#include <stdio.h>
int abs(int n){
		if(n<0){
		return -1*n;}else
		return n;}
int main(void)
{int N,A,M,B,C,x,i,a,b,c,l,r,g,m,tmp;
	char op[1];
	scanf("%d %s %d",&A,op,&B);
if(op[0]=='+'){
	printf("%d",A+B);}
	else
	printf("%d",A-B);


	return 0;
}