Retirement tax questions

Still a bit confused.  So if I am requesting the entire penalty be waited, and Line 54 is zero, then should I actually leave line 55 BLANK and the form is still correctly completed?  As another member posted, if I answer "Yes" to the corrective widow question then do I have to have a value in Line 55 and would that value be zero (since I am requesting the waiver)?  

 

Thanks.