[ASN.1] Problem with a range in PER

[Praful . bhoyar]

HI All,
     Can anyone guide me about the range to be considered for the following
element

x  ::=  INTEGER ( 0 | 15 .. 269)


will it be
269 -15 = 254 +1 = 255

and a range for value 0 .
so range = 255 +1 = 256
so this will encode in a octet aligned 8 bits

or

should the range be taken as
269 - 0 =269 +1 =270
this will encode in octet aligned 16 bits

Please guide me on this issue

Thanks in advance

Praful