C312322331333132212111133133313331333133312121111113313233211111   >>    C31232233133313221211113313331333133313331212111111331323321111   <<    C312322331333132212111133133313331333133312121111113313233211113   >>      C312322331333132212111133133313331333133312121111113313233211112   >>