Bank Statement Mappingr - BAI2 File - Problems with the format

Hello everybody,

I have a problem with the Bank Statement  Mapping, my issue is with the BANK_TRX_NUMBER format, i receive from the BANK data like this:

0060112231

0041102003

and etc.

from the documentation there is no a scenario like this:

Length knowed ( 10 digits)

Non indicator 

I need to pickup the last 6 digits. Example:

From the       |    Result at 

BAI2 file        |    App table

0060112231 =>  112231

Thanks