import java.util.Scanner;
import java.lang.String;


public class Main
{
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String a = scan.next();

        while (!a.equals("End")) {

            if (a.equals("Create")) {

                BankAccount.accounts();

            }
            else if(a.equals("Deposit"))
            {
                int id = scan.nextInt();
                double amount = scan.nextDouble();
                BankAccount.deposit(id, amount);
            }
            else if(a. equals("SetInterest"))
            {
                double setInterest =  scan.nextDouble();
                BankAccount.setInterestRate(setInterest);
            }
            else if(a. equals("GetInterest"))
            {
                int id = scan.nextInt();
                int year = scan.nextInt();
                if (BankAccount.getInterest(id,year) != -1)
                {
                    System.out.println(BankAccount.getInterest(id, year));
                }


            }
            a = scan.next();
        }


    }
}



import java.util.ArrayList;


public class BankAccount
{
    private final static double DEFAULT_INTEREST_RATE = 0.02;
    private static int id;
    private double balance;
    private static double interestRate = DEFAULT_INTEREST_RATE;
    private static int bankAccount = 1;
    private static ArrayList BankAccounts = new ArrayList();

    BankAccount()
    {
        this.id = bankAccount++;
        this.balance = balance;


    }
    BankAccount(double amount)
    {
        this.id = id;
        this.balance += amount;


    }
    static void accounts()
    {

        BankAccounts.add(new BankAccount());
        System.out.println("ID"+id);
    }
    static void setInterestRate(double interestRate)
    {
        BankAccount.interestRate = interestRate;
    }
    static void deposit(int id, double amount)
    {

        if (id > BankAccounts.size())
        {
            System.out.println("Account does not exist");
            return;
        }
        id--;
        BankAccounts.set(id, new BankAccount(amount));
        System.out.println("Deposit "+ amount + " to ID" + ++id);
    }
    static double getInterest ( int id, int years)
    {

        if (id > BankAccounts.size())
        {
            System.out.println("Account does not exist");
            return -1;
        }
        id--;
         BankAccount temp  = (BankAccount) BankAccounts.get(id);
        return BankAccount.interestRate * years * temp.balance;
    }


}