Jumping out of the loop and list

Let us say input for the while(true) is x and y coordinates. As long as user provide x and y coordinates loop will continue. Any keystroke will terminate the loop and list relevant x and y coordinates. Following is an incomplete program please complete it.

using System;

class Program
{
static void Main(string[] args)
{
int i = 0;

while (true)
{
Console.Write("X = ");

double x = int.Parse(Console.ReadLine());

Console.Write("Y = ");

double y = int.Parse(Console.ReadLine());

Console.WriteLine();

i++;

}

x[i] = x;
y[i] = y;

double[] x = new double[i];
double[] y = new double[i];

Console.WriteLine("X Y");

Console.ReadKey();
}
}