C13112133313331323321333133313331333133313233313331333132313112113121   >>    C1311213331333132332133313331333133313331323331333133313231311211312   <<    C13112133313331323321333133313331333133313233313331333132313112113123   >>      C13112133313331323321333133313331333133313233313331333132313112113122   >>