How to split a string based on first instance of number when field format is not consistent

[ManishHiraServi]

So we have a requirement to take a value from our CRM DB eg. 0123456AB and then to reformat it as AB0123456 to populate another external third party system. 

When building the original flow, I thought this was simple:- concatenate a Right(Text,2) , and left (text,7) to build the new value.

The problem when then looking at the bigger dataset was that sometimes the number portion of the text fields is not 7 characters but 6 and the character portion can either be 1 or 2 characters in length too . So how do I work around differing lengths of the numerical and text portions.  I don't seem have the mental capacity to work this out.

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