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List<Int32> list = new List<Int32>();
while (true)
{
Random r = new Random();
int n = r.Next()%37;
if (n != 0 && (!list.Contains(n)))
{
list.Add(n);
}
if (list.Count == 7)
{
break;
}
}
foreach (Int32 n in list)
{
Thread.Sleep(3000);
Console.Write(n + " ");
}
Console.ReadKey();
}