C31231211111133131211113313331333133313331323223313331333133313331311121211   >>    C3123121111113313121111331333133313331333132322331333133313331333131112121   <<    C31231211111133131211113313331333133313331323223313331333133313331311121213   >>      C31231211111133131211113313331333133313331323223313331333133313331311121212   >>