C13112133313331323321333133313331333133313331313331333131121133113311   >>    C1311213331333132332133313331333133313331333131333133313112113311331   <<    C13112133313331323321333133313331333133313331313331333131121133113313   >>      C13112133313331323321333133313331333133313331313331333131121133113312   >>