C111112111133131121133133313331312111133132313113313232213223313223231   >>    C11111211113313112113313331333131211113313231311331323221322331322323   <<    C111112111133131121133133313331312111133132313113313232213223313223233   >>      C111112111133131121133133313331312111133132313113313232213223313223232   >>