C312322331333132212111133133313331333133312121111331322231333121   >>    C31232233133313221211113313331333133313331212111133132223133312   <<    C312322331333132212111133133313331333133312121111331322231333123   >>      C312322331333132212111133133313331333133312121111331322231333122   >>