C312322331333132212111133133313331333133312121111121111122132313231   >>    C31232233133313221211113313331333133313331212111112111112213231323   <<    C312322331333132212111133133313331333133312121111121111122132313233   >>      C312322331333132212111133133313331333133312121111121111122132313232   >>