deus ex
if that doesn't run smoothly on your laptop, get visual studio, open a c# console app document, and type in between the {}s
int count = 0;
while (true)
{
Console.WriteLine(count);
count++;
}
numbers will go by superduper fast, try to screenshot when one number on the screen has all the same digits, like 55555 or 9999999999
the more you mess up, the longer it will take between the tries you get so it gets REALLY TENSE