public static void Main()
{
var set = new Set<int>();
for (int i = 1; i < 11; i++)
{
for (int j = 0; j < 3; j++)
{
set.Add(i);
}
}
Console.WriteLine(set);
Console.WriteLine(set.Count);
var otherSet = new Set<int>();
for (int i = 5; i < 16; i++)
{
otherSet.Add(i);
}
Console.WriteLine(otherSet);
Console.WriteLine(otherSet.Count);
Console.WriteLine(set.IntersectsWith(otherSet));
Console.WriteLine(set.Union(otherSet));
}
