import java.util.Scanner;

class Moon1{
    public static void main (String args[])
    throws java.io.IOException {
        char ch;
        Scanner scan = new Scanner(System.in);
        int num1 = scan.nextInt();
        ch = (char) System.in.read();
        int num2 = scan.nextInt();
        switch(ch) {
            case '+':
            System.out.println(num1+num2);
            break;
            case '-':
            System.out.println(num1-num2);
            break;
            case '*':
            System.out.println(num1*num2);
            break;
            case '/':
            System.out.println(num1/num2);
            break;
        }
    }
}