Exercises 24/2/16

//#1
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    class Program
    {
        public static void PrintMatrix(int [,] a)
        {
            for (int i = 0; i < a.GetLength(0); i++)
            {
                for (int j = 0; j < a.GetLength(1); j++)
                    Console.Write("{0,-7}", a[i, j]);
                Console.WriteLine();
            }
        }
        public static void Kelet(int[,] a)
        {
            for (int i = 0; i < a.GetLength(0); i++)
                for (int j = 0; j < a.GetLength(1); j++)
                {
                    a[i, j] = int.Parse(Console.ReadLine());
                }
        }
        static void Main(string[] args)
        {
            int[,] a = new int[6, 7];
            Kelet(a);
            PrintMatrix(a);
            for (int i = 0; i < a.GetLength(0); i++)
            {
                for (int j = 0; j < a.GetLength(1); j++)
                {
                    if (j == 0)
                        a[i, j] += 1000;
                    else
                        a[i, j] += 100;
                }
            }
            PrintMatrix(a);
        }
    }
}

//#2
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    class Program
    {
        public static void PrintMatrix(int[,] a)
        {
            for (int i = 0; i < a.GetLength(0); i++)
            {
                for (int j = 0; j < a.GetLength(1); j++)
                    Console.Write("{0,-7}", a[i, j]);
                Console.WriteLine();
            }
        }
        public static void Kelet(int[,] a)
        {
            for (int i = 0; i < a.GetLength(0); i++)
                for (int j = 0; j < a.GetLength(1); j++)
                    a[i, j] = int.Parse(Console.ReadLine());
        }
        public static int SumMatrix(int[,] a)
        {
            int sum = 0;
            for (int i = 0; i < a.GetLength(0); i++)
                for (int j = 0; j < a.GetLength(1); j++)
                    sum += a[i, j];
            return sum;
        }
        static void Main(string[] args)
        {
            int[,] a = new int[5, 5];
            Kelet(a);
            Console.WriteLine(SumMatrix(a));
        }
    }
}