C13112133313331323321333133313331333133313331313331333231323233311   >>    C1311213331333132332133313331333133313331333131333133323132323331   <<    C13112133313331323321333133313331333133313331313331333231323233313   >>      C13112133313331323321333133313331333133313331313331333231323233312   >>