namespace test
{
    class Data
    {
        private int someValue = 123;
        public int SomeValue { get; set; }

        public void SetValue()
        {
            Console.Write("Enter a value: ");
            SomeValue = Convert.ToInt32(Console.ReadLine());
        }
        public void DisplayValue()
        {
            Console.WriteLine("The private value is " + someValue);
        }
    }
}