C222133313331333131123313231333133313331323212331333133313121111332323211221   >>    C22213331333133313112331323133313331333132321233133313331312111133232321122   <<    C222133313331333131123313231333133313331323212331333133313121111332323211223   >>      C222133313331333131123313231333133313331323212331333133313121111332323211222   >>