import java.util.Scanner;

public class Prog8 {
  public static void main(String[] args) {

  //variables
  char operation;
  Scanner reader = new Scanner (System.in);
  double amt = 0.0;
  Account acc = new Account();

    while (reader.hasNext()) {
      operation = reader.next(".").charAt(0);

      if (operation == 'd') {
        amt = reader.nextDouble();
        acc.deposit(amt);
      }
      else if (operation == 'w') {
        amt = reader.nextDouble();
        acc.withdraw(amt);
      }
      else if (operation == 'i') {
        acc.addInterest();
      }
      else if (operation == 'p') {
        acc.getBalance();
      }
      else {
        System.out.println("** Invalid Operation **");
      }
    }
  }
}

public class Account {
  //variables
  private int accountID;
  private double accountBalance;

public Account() {
  accountID = (int)(Math.random() * (9000)) + 1000;
  accountBalance = 0.0;
}

//withdraw operation
public void withdraw(double amount) {
  if(amount > accountBalance)
  System.out.printf("Error: cannot withdraw $%.2fn",amount);
else {
  accountBalance -= amount;
  System.out.printf("$%.2f withdrawn from account %dn",amount,accountID);
}
}

//deposit operation
  public void deposit(double amount) {
  accountBalance += amount;
  System.out.printf("$%.2f deposited into account %dn",amount,accountID);
}

//add interest
public void addInterest() {
  double interest = accountBalance * 0.005;
  accountBalance += interest;
  System.out.printf("$%.2f interest added to accountn",interest,accountID);
}

//account balance
public void getBalance() {
  System.out.printf("Current balance for account %d:
  $%.2fn",accountID,accountBalance);
}
}