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  1. or download this
    sub is_rotatable{
#23456789 123456789 123456789 123456789 123456789 1234
(local$_=$_[0])=~y/0125689347/0152968/;reverse eq$_[0]
}
  2. or download this
    P:\test>type junk.pl
sub is_rotatable{
...
25696925 is rotatable
101 is rotatable
88 is rotatable
  3. or download this
    P:\test>type junk.pl
sub is_rotatable{
...
25696925 is rotatable
101 is rotatable
88 is rotatable