C13112133313331323321333133313331333133313331311331333132313331333131312323131   >>    C1311213331333132332133313331333133313331333131133133313231333133313131232313   <<    C13112133313331323321333133313331333133313331311331333132313331333131312323133   >>      C13112133313331323321333133313331333133313331311331333132313331333131312323132   >>