Development C# Tutorial

using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Text;
public class MainClass
{
    public static void Main()
    {
        Random r2 = new Random(99830123);
        Console.WriteLine(r2.Next());
        Console.WriteLine(r2.Next(150000));
        Console.WriteLine(r2.Next(9999, 100750));
        Console.WriteLine(r2.NextDouble());
    }
}
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