C131121333133313233213331333133313331312111133133313331333133312111133132333131   >>    C13112133313331323321333133313331333131211113313331333133313331211113313233313   <<    C131121333133313233213331333133313331312111133133313331333133312111133132333133   >>      C131121333133313233213331333133313331312111133133313331333133312111133132333132   >>