C312322331333132212111133133313331333133312121111133313232123313222221   >>    C31232233133313221211113313331333133313331212111113331323212331322222   <<    C312322331333132212111133133313331333133312121111133313232123313222223   >>      C312322331333132212111133133313331333133312121111133313232123313222222   >>