C1231321123223331211111131211113313331333132313332223312123232231   >>    C123132112322333121111113121111331333133313231333222331212323223   <<    C1231321123223331211111131211113313331333132313332223312123232233   >>      C1231321123223331211111131211113313331333132313332223312123232232   >>