C31231211111133131211113313331333133313331323223313331333133313331323211111   >>    C3123121111113313121111331333133313331333132322331333133313331333132321111   <<    C31231211111133131211113313331333133313331323223313331333133313331323211113   >>      C31231211111133131211113313331333133313331323223313331333133313331323211112   >>