import java.util.*;
class main 
{
    public static void main(String [] args){
        Scanner sc = new Scanner (System.in);
         
        String str = sc.nextLine();
        double amount= sc.nextInt();
        int accno = sc.nextInt();
        double balance;
        
        if(amount<0 || amount>avamount){
            System.out.print("Invalid input");
            return;
        }
        
        if(str.equals("withdraw")){
            balance=1000-amount;
            
        }
        else if(str.equals("deposit")){
            balance=1000+amount;
            
        }
        else{
            System.out.print("Invalid input");
            return;
        }
        
        
        System.out.printf("%.1f",balance);
        
        
    } 
    
}