C312322331333132212111133133313331333133312121111331333123323221   >>    C31232233133313221211113313331333133313331212111133133312332322   <<    C312322331333132212111133133313331333133312121111331333123323223   >>      C312322331333132212111133133313331333133312121111331333123323222   >>