C131121333133313233213331333133313331333133313231333231323221322231   >>    C13112133313331323321333133313331333133313331323133323132322132223   <<    C131121333133313233213331333133313331333133313231333231323221322233   >>      C131121333133313233213331333133313331333133313231333231323221322232   >>