using System;
class MainEntryPoint {
static unsafe void Main() {
Console.Write("How big an array do you want? \n> ");
string userInput = Console.ReadLine();
uint size = uint.Parse(userInput);
long* pArray = stackalloc long[(int)size];
for (int i = 0; i < size; i++)
pArray[i] = i * i;
for (int i = 0; i < size; i++)
Console.WriteLine("Element {0} = {1}", i, *(pArray + i));
}
}