C1111233131211111211113313331333133313221211113313331333133313121133131131221   >>    C111123313121111121111331333133313331322121111331333133313331312113313113122   <<    C1111233131211111211113313331333133313221211113313331333133313121133131131223   >>      C1111233131211111211113313331333133313221211113313331333133313121133131131222   >>