SSN First name length issue

[seeking_quey]

Hi Experts,

SSN office allows First name length to be 16 letters, but my first name is of 19 letters( i-94, passport has accommodated all 19 letters as my first name ).

first name = A(5 letters) space B(5 letters) space C(7 letters) , but SSN first name can accommodate only  A(5 letters) space B(5 letters) space C(only 4 letters)

Middle name = nil

last name = D(4 letters)  

Experts can you suggest how can I get my name on SSN with our impacting Driving License when applying.

Thanks you!