C312322331333132212111133133313331333133312121111331121133133313222313232232211   >>    C31232233133313221211113313331333133313331212111133112113313331322231323223221   <<    C312322331333132212111133133313331333133312121111331121133133313222313232232213   >>      C312322331333132212111133133313331333133312121111331121133133313222313232232212   >>