C13112133313331323321333133313331333133313331311331333121111132231221322321   >>    C1311213331333132332133313331333133313331333131133133312111113223122132232   <<    C13112133313331323321333133313331333133313331311331333121111132231221322323   >>      C13112133313331323321333133313331333133313331311331333121111132231221322322   >>