C131121333133313233213331333133313331333133313332313332313233131   >>    C13112133313331323321333133313331333133313331333231333231323313   <<    C131121333133313233213331333133313331333133313332313332313233133   >>      C131121333133313233213331333133313331333133313332313332313233132   >>