C13112133313331323321333133313331333133313331333133313331333133313133321221   >>    C1311213331333132332133313331333133313331333133313331333133313331313332122   <<    C13112133313331323321333133313331333133313331333133313331333133313133321223   >>      C13112133313331323321333133313331333133313331333133313331333133313133321222   >>