C13112133313331323321333133313331333133313331322331322331333133313111113121   >>    C1311213331333132332133313331333133313331333132233132233133313331311111312   <<    C13112133313331323321333133313331333133313331322331322331333133313111113123   >>      C13112133313331323321333133313331333133313331322331322331333133313111113122   >>