C13223313311212111133133313331333133313233121333133313331313331333133313221211   >>    C1322331331121211113313331333133313331323312133313331333131333133313331322121   <<    C13223313311212111133133313331333133313233121333133313331313331333133313221213   >>      C13223313311212111133133313331333133313233121333133313331313331333133313221212   >>