C1311213331333132332133313331333133313331333132233132233133313331231   >>    C131121333133313233213331333133313331333133313223313223313331333123   <<    C1311213331333132332133313331333133313331333132233132233133313331233   >>      C1311213331333132332133313331333133313331333132233132233133313331232   >>