C31231211111133131211113313331333132233133313331333132333132321123231   >>    C3123121111113313121111331333133313223313331333133313233313232112323   <<    C31231211111133131211113313331333132233133313331333132333132321123233   >>      C31231211111133131211113313331333132233133313331333132333132321123232   >>