C312312111133131121333133313113313331333133313331333133313331323133313132313221   >>    C31231211113313112133313331311331333133313331333133313331333132313331313231322   <<    C312312111133131121333133313113313331333133313331333133313331323133313132313223   >>      C312312111133131121333133313113313331333133313331333133313331323133313132313222   >>