C31231211113313121211113313331323133313331333133313133313221132311   >>    C3123121111331312121111331333132313331333133313331313331322113231   <<    C31231211113313121211113313331323133313331333133313133313221132313   >>      C31231211113313121211113313331323133313331333133313133313221132312   >>