import java.util.Scanner;
class Number
{
	int a, b;
	String c;
	Number(int n, int m, String k)
	{
		a = n;
		b = m;
		c = k;
	}
	void Print()
	{
		int ans = 0;
		if(c.equals("+"))ans = a + b;
		else if(c.equals("-"))ans = a - b;
		else if(c.equals("*"))ans = a * b;
		else ans = a / b;
		System.out.println(ans);
	}
}
public class Main {
	public static void main(String[] args) {
		Scanner cin = new Scanner(System.in);
		int a, b;
		String c;
		a = cin.nextInt();
		b = cin.nextInt();
		c = cin.nextLine();
		c = cin.nextLine();
		Number p = new Number(a, b, c);
		p.Print();
		cin.close();
	}
}