package com.company;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
// write your code here
Scanner rus = new Scanner(System.in);
int a = rus.nextInt();
char c = rus.next().charAt(0);
int b = rus.nextInt();
switch (c){
case '+':
System.out.print(a + b);
break;
case '-':
System.out.print(a - b);
break;
case '*':
System.out.print(a * b);
break;
case '/':
System.out.print(a / b);
break;
}
}
}