Sorry if the title doesn't make sense. Basically I have a series of strings that are 10-60 characters long. The problem being is the service I have to use only accepts strings up to 25 so I need a way to convert the strings I have to 25 characters or less, send it off and when I get the results back be able to convert it back to the original id.

### Example:

```
id =  "this_is_a_test_account_that_is_longer_than_allowed"
id = contract(id)
// id = "DSFK23478JDSFHGW874"
id = expand("DSFK23478JDSFHGW874")
// id = "this_is_a_test_account_that_is_longer_than_allowed"

```