import java.util.*;
public class Main
{
    public static void main(String[] args)
    {
        Scanner scan=new Scanner(System.in);
        String type=scan.next();
        double bal=1000;
        if(amt>1000||amt<0){
            System.out.println("Invalid input");
            return;
        }
        if(type.equals("deposit"))
        {
            double amt=scan.nextDouble();
            int accnum=scan.nextInt();
            System.out.println(amt+bal);
        }
        else if(type.equals("withdraw"))
        {
            double amt=scan.nextDouble();
            int accnum=scan.nextInt();
            System.out.println(bal-amt);
        }
        else
        {
            System.out.println("Invalid input");
        }
    }
}