C1111233131211111211113313331333133313331333133313331333133313223331213221   >>    C111123313121111121111331333133313331333133313331333133313331322333121322   <<    C1111233131211111211113313331333133313331333133313331333133313223331213223   >>      C1111233131211111211113313331333133313331333133313331333133313223331213222   >>