## Problem

Pooja would like to withdraw Xhttps://www.codechef.com/problems/HS08TESTl 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 Format

Each input contains 2 integers  and .
is the amount of cash which Pooja wishes to withdraw.
is Pooja's initial account balance.

### Output Format

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.

### Constraints

1. 0<�≤2000 - the amount of cash which Pooja wishes to withdraw.
2. 0≤�≤2000 with two digits of precision - Pooja's initial account balance.

### Sample 1:

Input

Output

30 120.00
89.50

## Code Examples

### #1 Code Example with C Programming

Code - C Programming

#include<stdio.h>

int main()
{
int x;
float y,z;
scanf("%d %f",&x,&y);
if(x%5==0 && x<=y-0.50)
{
z=y-x-0.50;
printf("%.2f\n",z);
}
else
{
printf("%.2f\n",y>;
}
} 
Copy The Code &

Input

cmd
30 120.00

Output

cmd
89.50