zad 8

using System;

namespace ConsoleApp1
{
    class Program
    {
        static int[] ar1 = new int[] { 4, 5, 3, 0, 1 };
        static int[] ar2 = new int[] { 5, 7, 8, 1, 2 };
        static int[] ar3 = new int[10];

        static void Sum()
        {
            int c = 0;
            int i = 0;
            while (i < ar1.Length && i< ar2.Length)
            {
                int d = ar1[i] + ar2[i];
                if (d >= 10)
                {
                    d %= 10;
                    ar3[i] = d + c;
                    c = 1;
                }
                else
                {
                    ar3[i] = d + c;
                    c = 0;
                }
            }

            if (c == 1) ar3[i] = 1;
            for (int j = 0;  j< i ; j++)
            {
                Console.Write(ar3[j]);
            }
            Console.WriteLine();
        }
        static void Ar(int[] a)
        {
            for (int i = 0; i < a.Length; i++)
                Console.Write(a[i]);
        }
        static void Main(string[] args)
        {
            Ar(ar1);
            Console.WriteLine();
            Ar(ar2);
            Sum();
        }
    }
}