C31231211113313121211113313331323133313231333133313331333132211211321   >>    C3123121111331312121111331333132313331323133313331333133313221121132   <<    C31231211113313121211113313331323133313231333133313331333132211211323   >>      C31231211113313121211113313331323133313231333133313331333132211211322   >>