A Small Step Toward Calculators

Sridhar has a string of the form x+y or x-y. Here, and are single-digit non negative integers. His task is to perform the addition or subtraction accordingly and print the result.

As a newbie programmer, Sridhar is struggling to finish the task. Can you help him?

Input Format

In a single line, you will be given the string.

Constraints

The string contains exactly characters of the form x+y or x-y.

Output Format

In a single line, print the result of the operation.

Sample Input 0

0+1

Sample Output 0

1

Program

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    static int solve(String opr) {
        int x,y;char sym;
        int res;
        x = Character.getNumericValue(opr.charAt(0));
        y = Character.getNumericValue(opr.charAt(2));
        sym = opr.charAt(1);
        if(sym == '+')
            res = x + y;
        else
            res = x - y;
        return res;
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String opr = in.next();
        int result = solve(opr);
        System.out.println(result);
        in.close();
    }
}