C312312111133131121333133313113313331333133313331333133313331333132311223221   >>    C31231211113313112133313331311331333133313331333133313331333133313231122322   <<    C312312111133131121333133313113313331333133313331333133313331333132311223223   >>      C312312111133131121333133313113313331333133313331333133313331333132311223222   >>