using System;

​

    public class Program

    {

        public static void Main(string[] args)

        {

            int n = int.Parse(Console.ReadLine());

            double[,] matrix = new double[n,n];

​

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

            {

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

                {

                    matrix[i,j] = double.Parse(Console.ReadLine());

                }

            }

​

            double ElAboveMDiagonal = 1;

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

            {

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

                {

                    ElAboveMDiagonal *= matrix[i, j];

                }

            }

​

            double sumElTopSecDiagonal = 0;

            for (int i = 0; i < n - 1; i++)

            {

                sumElTopSecDiagonal += matrix[i, n- 2 - i];

            }

​

            Console.WriteLine(sumElTopSecDiagonal);

            Console.WriteLine(ElAboveMDiagonal);

        }

    }

​

​

​

​

​