import java.util.*;
class Main{
    public static void main(String args[]){
        Scanner sc=new Scanner(System.in);
        String type=sc.nextLine();
        float amount=sc.nextFloat();
    
        int acc=sc.nextInt();
        double bal=1000;
        if(amount<=0){
            System.out.println("Invalid input");
        }
        if(bal<=0&&bal>1000){
            System.out.println("Invalid input");
        }
        if(type.equalsIgnoresCase("deposit")){
            bal+=amount;
            System.out.println(bal);
        }
        else if(type.equalsIgnoreCase("withdraw")){
            bal-=amount;
            System.out.println(bal);
        }
        else{
            System.out.println("Invalid input");
        }
    }
    
}