C312322331333132212111133133313331333133312121111331333132333133313121133121   >>    C31232233133313221211113313331333133313331212111133133313233313331312113312   <<    C312322331333132212111133133313331333133312121111331333132333133313121133123   >>      C312322331333132212111133133313331333133312121111331333132333133313121133122   >>