C312322331333132212111133133313331333133312121111331333231123331   >>    C31232233133313221211113313331333133313331212111133133323112333   <<    C312322331333132212111133133313331333133312121111331333231123333   >>      C312322331333132212111133133313331333133312121111331333231123332   >>