### Problem Statement

Recently, your boss decided that all sales that your company makes should be in the form of "BUY X GET Y FREE", where X and Y are integers. For example, rather than advertising that your latest product is on sale for \$4.00, when it normally sells for \$6.00, he wants you to advertise it as a "BUY 2 GET 1 FREE" sale.

Given regular, the normal price of the item, and sale, the sale price of the item , return a String formatted as "BUY X GET Y FREE" (quotes for clarity only), where X and Y are positive integers with no leading zeroes. X and Y must be as small as possible (for example, return "BUY 2 GET 1 FREE" instead of "BUY 4 GET 2 FREE").

### Definition

 Class: SalePitch Method: buyXGetY Parameters: String, String Returns: String Method signature: String buyXGetY(String regular, String sale) (be sure your method is public)

### Constraints

-regular and sale will be formatted as "\$X.YZ", where X represents an integer between 0 and 9999, inclusive, with no extra leading zeroes, and Y and Z are each between '0' and '9', inclusive.
-The value represented by sale will be less than that represented by regular.
-Neither regular nor sale will be "0.00".

### Examples

0)

 `"\$6.00"` `"\$4.00"`
`Returns: "BUY 2 GET 1 FREE"`
 The example from the problem statement.
1)

 `"\$100.00"` `"\$0.50"`
`Returns: "BUY 1 GET 199 FREE"`
2)

 `"\$12.34"` `"\$5.67"`
`Returns: "BUY 567 GET 667 FREE"`
3)

 `"\$12.34"` `"\$8.64"`
`Returns: "BUY 432 GET 185 FREE"`
4)

 `"\$9069.96"` `"\$4972.81"`
`Returns: "BUY 497281 GET 409715 FREE"`
5)

 `"\$1000.00"` `"\$65.50"`
`Returns: "BUY 131 GET 1869 FREE"`

#### Problem url:

http://www.topcoder.com/stat?c=problem_statement&pm=6825

#### Problem stats url:

http://www.topcoder.com/tc?module=ProblemDetail&rd=10071&pm=6825

connect4

#### Testers:

PabloGilberto , brett1479 , Olexiy

Math