using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter the number of rows:");

        int r = Convert.ToInt16(Console.ReadLine());

        Console.WriteLine("Enter the number of Columns:");

        int c = Convert.ToInt16(Console.ReadLine());

        int[,] arrvalues = new int [r,c] ;

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

        {

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

            {

                arrvalues[i,j] = Convert.ToInt16(Console.ReadLine());

            }

        }

        int lowertriangle=0;

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

        {

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

            {

                if(i>=j)

                lowertriangle+=arrvalues[i,j];

            }

        }

        Console.WriteLine("Upper Triangle SUm = " + lowertriangle);

        int uppertriangle = 0;

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

        {

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

            {

                if(i<=j)

                uppertriangle+=arrvalues[i,j];

            }

        }

        Console.WriteLine("Lower Triangle SUm = " + uppertriangle);

    }

}