using System;

​

public class Program

{

    public static void Main()

    {

        var arr=new (double x, double y)[]{

        ( 1804289408.000000,  846930880.000000),

        ( 1681692800.000000,  1714636928.000000),

        ( 1957747840.000000,  424238336.000000),

        ( 719885376.000000,  1649760512.000000),

        ( 596516672.000000,  1189641472.000000),

        ( 1025202368.000000,  1350489984.000000),

        ( 783368704.000000,  1102520064.000000),

        ( 2044897792.000000,  1967513984.000000),

        ( 1365180544.000000,  1540383488.000000),

        ( 304089184.000000,  1303455744.000000),

        ( 35005212.000000,  521595360.000000),

        ( 294702560.000000,  1726956416.000000),

        ( 336465792.000000,  861021504.000000),

        ( 278722848.000000,  233665120.000000),

        ( 2145174016.000000,  468703136.000000),

        ( 1101513984.000000,  1801979776.000000),

        ( 1315634048.000000,  635723072.000000),

        ( 1369133056.000000,  1125898112.000000),

        ( 1059961408.000000,  2089018496.000000),

        ( 628175040.000000,  1656478080.000000),

        ( 1131176192.000000,  1653377408.000000),

        ( 859484416.000000,  1914544896.000000),

        ( 608413760.000000,  756898560.000000),

        ( 1734575232.000000,  1973594368.000000),

        ( 149798320.000000,  2038664320.000000),

        ( 1129566464.000000,  184803520.000000),

        ( 412776096.000000,  1424268928.000000),

        ( 1911760000.000000,  749241856.000000),

        ( 137806864.000000,  42999168.000000),

        ( 982907008.000000,  135497280.000000),

        ( 511702304.000000,  2084420864.000000),

        };

        foreach(var a in arr){

            var x=a.x % 512;

            var y=a.y % 512;

            Console.WriteLine($"x: {x}, y: {y}, res: {eggholder(x,y)}");

        }

    }

​

    static double eggholder(double x, double y){

        double term1 = -(y + 47) * (Math.Sin(Math.Sqrt(Math.Abs(x / 2 + y + 47))));

        double term2 = -x * Math.Sin(Math.Sqrt(Math.Abs(x - y + 47)));

​

        return term1 + term2;

    }

}