C13112133313331323321333133313331323133313331333133313233123131   >>    C1311213331333132332133313331333132313331333133313331323312313   <<    C13112133313331323321333133313331323133313331333133313233123133   >>      C13112133313331323321333133313331323133313331333133313233123132   >>