C312322331333132212111133133313331333133312121111113313233112121   >>    C31232233133313221211113313331333133313331212111111331323311212   <<    C312322331333132212111133133313331333133312121111113313233112123   >>      C312322331333132212111133133313331333133312121111113313233112122   >>