C13112133313331323321333133313331333131211113313331333132322331311   >>    C1311213331333132332133313331333133313121111331333133313232233131   <<    C13112133313331323321333133313331333131211113313331333132322331313   >>      C13112133313331323321333133313331333131211113313331333132322331312   >>