C312322331333132212111133133313331333133312121111112133313233221   >>    C31232233133313221211113313331333133313331212111111213331323322   <<    C312322331333132212111133133313331333133312121111112133313233223   >>      C312322331333132212111133133313331333133312121111112133313233222   >>