static void Main(string[] args) { Console.WriteLine("Write method to add 2 positive integer numbers represented as arrays of digits"); Console.WriteLine("(each array element arr[i] contains a digit; the last digit is kept in arr[0])."); Console.WriteLine("Each of the numbers that will be added could have up to 10 000 digits.\n"); Console.Write("Enter the first number: "); BigNumber first = new BigNumber(Console.ReadLine()); Console.Write("Enter the second number: "); BigNumber second = new BigNumber(Console.ReadLine()); Console.WriteLine(first + second); }