C131121333133313233213331333133313331333133313232233131133131311233131   >>    C13112133313331323321333133313331333133313331323223313113313131123313   <<    C131121333133313233213331333133313331333133313232233131133131311233133   >>      C131121333133313233213331333133313331333133313232233131133131311233132   >>