Difficult Query

Hello,

I would like to request for a difficult query that may be not solvable logically.

If user enter az123456789 or az-123456789 it always converted into
AZ-123456789
[A-Z] {2} First Character must be any alphabet in UPPER CASE between A to Z and max strength is 2
[-] {1} After first character Hyphen symbol must be shown and max strength is 1
[0-9] {1 to 9} after hyphen symbol any numeric character between 0 to 9 where min strength could be 7 and max strength could be 9.

OR

If user enter a123456789 or a-123456789 it always converted into
A-123456789
[A-Z] {1} First Character must be any alphabet in UPPER CASE between A to Z and max strength is 1
[-] {1} After first character Hyphen symbol must be shown and max strength is 1
[0-9] {1 to 9} after hyphen symbol any numeric character between 0 to 9 where min strength could be 7 and max strength could be 9.

OR

If user enter a11234567890 or a-11234567890 it always converted into
A1-1234567890
[A-Z] {1} First Character must be any alphabet in UPPER CASE between A to Z and max strength is 1
[0-9] {1 to 9} Second Character must be any numeric character between 0 to 9 where max strength is 1.
[-] {1} After second character Hyphen symbol must be shown and max strength is 1
[0-9] {1 to 9} after hyphen symbol any numeric character between 0 to 9 where Exact, Accurate, Maximum Strength is 10 after third character i.e. hyphen.

Since 3rd requirement create confusion
If this could be solved then I have no words for Thanks