C13112133313331323321333133313331333133313331313331333131122112323311221   >>    C1311213331333132332133313331333133313331333131333133313112211232331122   <<    C13112133313331323321333133313331333133313331313331333131122112323311223   >>      C13112133313331323321333133313331333133313331313331333131122112323311222   >>