C111123313121111121111331323133313331333132333133313331333111121322321   >>    C11112331312111112111133132313331333133313233313331333133311112132232   <<    C111123313121111121111331323133313331333132333133313331333111121322323   >>      C111123313121111121111331323133313331333132333133313331333111121322322   >>