P:\test>junk
>> 'aaaaaaaaaa'
>> 'aaaaaaaa'
>> 'aaaaaa'
>> 'aaaa'
>> 'aa'
>> ''
<< ''
<< ' ( aa ) '
<< ' ( aaaa ) '
<< ' ( aaaaaa ) '
<< ' ( aaaaaaaa ) '
<< ' ( aaaaaaaaaa ) '
 ( aaaaaaaaaa )