C312312111133131121333133313113313331333133313331333133313331333133313113321311   >>    C31231211113313112133313331311331333133313331333133313331333133313331311332131   <<    C312312111133131121333133313113313331333133313331333133313331333133313113321313   >>      C312312111133131121333133313113313331333133313331333133313331333133313113321312   >>