C1111233131211111211113313231333133313331323331333133313223331211   >>    C111123313121111121111331323133313331333132333133313331322333121   <<    C1111233131211111211113313231333133313331323331333133313223331213   >>      C1111233131211111211113313231333133313331323331333133313223331212   >>