C312312111133131121333133313113313331333133313331333133313331333133313111311231   >>    C31231211113313112133313331311331333133313331333133313331333133313331311131123   <<    C312312111133131121333133313113313331333133313331333133313331333133313111311233   >>      C312312111133131121333133313113313331333133313331333133313331333133313111311232   >>