C312322331333132212111133133313331333133312121111331333133112212323321   >>    C31232233133313221211113313331333133313331212111133133313311221232332   <<    C312322331333132212111133133313331333133312121111331333133112212323323   >>      C312322331333132212111133133313331333133312121111331333133112212323322   >>