C1111233131211111211113313331333132213331311212111133132333133313231322232311   >>    C111123313121111121111331333133313221333131121211113313233313331323132223231   <<    C1111233131211111211113313331333132213331311212111133132333133313231322232313   >>      C1111233131211111211113313331333132213331311212111133132333133313231322232312   >>