C3123121111113313121111331333133313331211113313331323133313331333132322122321   >>    C312312111111331312111133133313331333121111331333132313331333133313232212232   <<    C3123121111113313121111331333133313331211113313331323133313331333132322122323   >>      C3123121111113313121111331333133313331211113313331323133313331333132322122322   >>