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C#-Quelltext

        /// the constructor
        /// </summary>
        /// <param name="type">the operation type</param>
        /// <param name="left">first number</param>
        /// <param name="right">second number</param>
        public Calculator(OpType type, string left, string right)
        {
            // change color
            Console.ForegroundColor = ConsoleColor.Yellow;

            // add zeroes (if needed)
            if (left.Length == right.Length)
            {
                // alles ok
            }
            else if (left.Length > right.Length)
            {
                right = Util.AddZeroes(right, left.Length - right.Length);
            }
            else if (left.Length < right.Length)
            {
                left = Util.AddZeroes(left, right.Length - left.Length);
            }

            // calculate
            if (type == OpType.Add)
            {
                Add(left, right);
            }
        }

        /// <summary>
        /// adds two numbers together
        /// </summary>
        /// <param name="left">the first number</param>
        /// <param name="right">the second number</param>
        public void Add(string li, string ri)
        {
            // carry switcher
            bool over = false;
  
            // the additon result
            List<int> res = new List<int>();

            // calculation loop
            for (int x = li.Length - 1; x > -1; x--)
            {
                // get ints
                int l = (int)Char.GetNumericValue(li[x]);   // left
                int r = (int)Char.GetNumericValue(ri[x]);   // right

                // calculate result
                int e = l + r;

                // if greater than 9
                if (e > 9)
                {
                    // subtract 10 from the result to get real number
                    int ne = e - 10;

                    // if over is true
                    if (over == true)
                    {
                        // add one to result
                        ne = ne + 1;
                    }

                    // add result
                    res.Add(ne);

                    // set over to true
                    over = true;
                }
                else
                {
                    // add to result list
                    if (over == true)
                    {
                        // increase result by one
                        e = e + 1;
                    }

                    // add result
                    res.Add(e);

                    // set over to false
                    over = false;
                }
            }

            // get result string
            string result = Util.Reverse(String.Join("", res.ToArray()));

            // print result
            Console.WriteLine(result);
        }

C#-Quelltext

               // subtract 10 from the result to get real number
                    int ne = e - 10;

                    // if over is true
                    if (over == true)
                    {
                        // add one to result
                        ne = ne + 1;
                    }

C#-Quelltext

int ne;
if (over == true)
{
   ne = e - 10 + 1
}
else
{
 ne = e - 10
}