C31231211111133131211113313331333133313331323132313331322332321   >>    C3123121111113313121111331333133313331333132313231333132233232   <<    C31231211111133131211113313331333133313331323132313331322332323   >>      C31231211111133131211113313331333133313331323132313331322332322   >>