C1231321123223331211111131211113313331333132313332323232211211111121   >>    C123132112322333121111113121111331333133313231333232323221121111112   <<    C1231321123223331211111131211113313331333132313332323232211211111123   >>      C1231321123223331211111131211113313331333132313332323232211211111122   >>