public static string Convert(IToDecNumberConverter converterToDec,
            IFromDecNumberConverter converterFromDec,
            string numb)
        {
            numb = converterToDec.Convert(numb);
            numb = converterFromDec.Convert(numb);

            return numb;
        }
 public static string ConvertToDecNumber(IToDecNumberConverter converterToDec,
     string numb)
 {
     return converterToDec.Convert(numb);
 }