public static void Main()
int[] groups = new int[4];
for (int i = 0; i < 10000000; i++)
Random random = new Random(i);
Random random2 = new Random(i);
if (random.Next(0, 2) == 1)
var randomNumber = random2.Next(0, 100 + 1);
else if (randomNumber <= 50)
else if (randomNumber <= 75)
else if (randomNumber <= 100)
throw new Exception("ei pitäs tänne tulla");
for (int i = 0; i < 4; i++)
Console.WriteLine(i + ":" + groups[i]);