C131121333133313233213331333133313331312111133133313331333133313331322311221   >>    C13112133313331323321333133313331333131211113313331333133313331333132231122   <<    C131121333133313233213331333133313331312111133133313331333133313331322311223   >>      C131121333133313233213331333133313331312111133133313331333133313331322311222   >>