C13112133313331323321333133313331333133313233313331333132312111   >>    C1311213331333132332133313331333133313331323331333133313231211   <<    C13112133313331323321333133313331333133313233313331333132312113   >>      C13112133313331323321333133313331333133313233313331333132312112   >>