Brainfuck, 7372 bytes
,>>,
[
<<[>+>->+<<<-]
>>
[
>+>[>+>>+<
[>->>>]]
<<[>>+>+++++[<++++++>>[+++[<++++++++>-]]]>]
<<<<<-<<-
]
>>[<.>[-]]
<,
]
Checks whether the differences between the first character and subsequent characters are divisible by 32.