C312312111133131121333133313113313331333133313331333133313331333133313113121311   >>    C31231211113313112133313331311331333133313331333133313331333133313331311312131   <<    C312312111133131121333133313113313331333133313331333133313331333133313113121313   >>      C312312111133131121333133313113313331333133313331333133313331333133313113121312   >>