C312322331333132212111133133313331333133312121111331333133112332212321   >>    C31232233133313221211113313331333133313331212111133133313311233221232   <<    C312322331333132212111133133313331333133312121111331333133112332212323   >>      C312322331333132212111133133313331333133312121111331333133112332212322   >>