C1231321123223331211111131211113313331333132313331333323223332331322121221   >>    C123132112322333121111113121111331333133313231333133332322333233132212122   <<    C1231321123223331211111131211113313331333132313331333323223332331322121223   >>      C1231321123223331211111131211113313331333132313331333323223332331322121222   >>