Pooja would like to withdraw X $US from an ATM. The cash machine will only accept the transaction if X is a multiple of 5, and Pooja’s account balance has enough cash to perform the withdrawal transaction (including bank charges). For each successful withdrawal the bank charges 0.50 $US. Calculate Pooja’s account balance after an attempted transaction.

## Input

Positive integer 0 < X <= 2000 - the amount of cash which Pooja wishes to withdraw.

Nonnegative number 0<= Y <= 2000 with two digits of precision - Pooja’s initial account balance.

## Output

Output the account balance after the attempted transaction, given as a number with two digits of precision. If there is not enough money in the account to complete the transaction, output the current bank balance.

## Example - Successful Transaction

```
Input:
30 120.00
Output:
89.50
```

## Example - Incorrect Withdrawal Amount (not multiple of 5)

```
Input:
42 120.00
Output:
120.00
```

## Example - Insufficient Funds

```
Input:
300 120.00
Output:
120.00
```

## codechef ATM problem solution in java

```
import java.util.Scanner;
//HS08TEST
class Solution {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
double withdraw = sc.nextDouble();
double balance = sc.nextDouble();
if (balance >= withdraw + 0.5 && withdraw % 5 == 0) {
balance -= withdraw + 0.5;
}
System.out.printf("%.2f", balance);
sc.close();
}
}
```