C312312111133131121333133313113313331333133313331333133112122132331   >>    C31231211113313112133313331311331333133313331333133313311212213233   <<    C312312111133131121333133313113313331333133313331333133112122132333   >>      C312312111133131121333133313113313331333133313331333133112122132332   >>