using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Task7
{
    class Task7
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Value for x: ");
            double x = double.Parse(Console.ReadLine());
            Console.WriteLine("Value for y: ");
            double y = double.Parse(Console.ReadLine());
            Console.WriteLine("Value for x of the circle: ");
            double xc = double.Parse(Console.ReadLine());
            Console.WriteLine("Value for y of the circle : ");
            double yc = double.Parse(Console.ReadLine());
            double r = Math.Sqrt(xc * xc + yc * yc);
            bool isInside = (x- xc) *(x- xc) + (y- yc) * (y- yc) <r*r;
            Console.WriteLine(isInside);
        }
    }
}