C131121333133313233213331333133313331333132333133313331333132313331   >>    C13112133313331323321333133313331333133313233313331333133313231333   <<    C131121333133313233213331333133313331333132333133313331333132313333   >>      C131121333133313233213331333133313331333132333133313331333132313332   >>