public class Loop {
    
    public static int basicCalculator(int num1 , int num2){
        
        Scanner sh = new Scanner(System.in);
        char sign=sh.next().charAt(0);
        
        if(sign=='+'){
            return num1+num2;
        } else if (sign=='-') {
            return num1-num2;
        }else if(sign=='*'){
            return num1*num2;
        }else if(sign=='/'){
            return num1/num2;
        }
        
        return -1; // It is dummy return.....
    }

}