C312322331333132212111133133313331333133312121111331322123313121   >>    C31232233133313221211113313331333133313331212111133132212331312   <<    C312322331333132212111133133313331333133312121111331322123313123   >>      C312322331333132212111133133313331333133312121111331322123313122   >>