C312322331333132212111133133313331333133312121111331211111112121   >>    C31232233133313221211113313331333133313331212111133121111111212   <<    C312322331333132212111133133313331333133312121111331211111112123   >>      C312322331333132212111133133313331333133312121111331211111112122   >>