C312322331333132212111133133313331333133312121111331321123221231   >>    C31232233133313221211113313331333133313331212111133132112322123   <<    C312322331333132212111133133313331333133312121111331321123221233   >>      C312322331333132212111133133313331333133312121111331321123221232   >>