using System;

public class Program

{

    public static double FindLargestTriangleArea(int[][] points)

    {

        int n = points.Length;

        double max = 0.0;

        for (int i = 0; i < n; i++) 

        {

            for (int j = i + 1; j < n; j++) 

            {

                for (int k = j + 1; k < n; k++) 

                {

                    double area = GetArea(points[i], points[j], points[k]);

                    if (area > max) {

                        max = area;

                    }

                }

            }

        }

        return max;

    }

    public static double GetArea(int[] p0, int[] p1, int[] p2) {

        var v1x = p1[0] - p0[0];

        var v1y = p1[1] - p0[1];

        var v2x = p2[0] - p0[0];

        var v2y = p2[1] - p0[1];

        return Math.Abs(v1x * v2y - v1y * v2x) / 2.0;

    }

    public static void Main()

    {

        Console.WriteLine("UniLecs");

        // tests

        var points = new int[][] {

            new int[] { 0, 0 },

            new int[] { 0, 1 },

            new int[] { 1, 0 },

            new int[] { 0, 2 },

            new int[] { 2, 0 }

        };

        Console.WriteLine(FindLargestTriangleArea(points).ToString()); // 2.0

    }

}