C1231321123223331211111131211113313331333132313331333232233121221123211221   >>    C123132112322333121111113121111331333133313231333133323223312122112321122   <<    C1231321123223331211111131211113313331333132313331333232233121221123211223   >>      C1231321123223331211111131211113313331333132313331333232233121221123211222   >>