public static void Main()
for (int y = 0; y < 10000; y++)
for (int NbStringUp = 1; NbStringUp < 50; NbStringUp++)
string i = new String('i', NbStringUp);
System.Threading.Thread.Sleep(30);
for (int NbStringDown = 50; NbStringDown > 1; NbStringDown--)
string i = new String('i', NbStringDown);
System.Threading.Thread.Sleep(30);