C111123313121111121111331323133313331333132333133313331333113233231   >>    C11112331312111112111133132313331333133313233313331333133311323323   <<    C111123313121111121111331323133313331333132333133313331333113233233   >>      C111123313121111121111331323133313331333132333133313331333113233232   >>