static List<T> Merge<T>(List<T> left, List<T> right)
            where T : INumber<T>
        {
            List<T> result = new();

            while (left.Any() && right.Any())
            {
                if (left.First() <= right.First())
                {
                    result.Add(left.First());
                    left.Remove(left.First());
                }
                else
                {
                    result.Add(right.First());
                    right.Remove(right.First());
                }
            }

            return result;
        } 

        static List<T> Merge<T>(List<T> left, List<T> right)
            where T : INumber<T>
        {
            List<T> result = new();

            while (left.Any() && right.Any())
            {
                if (left.First() <= right.First())
                {
                    result.Add(left.First());
                    left.Remove(left.First());
                }
                else
                {
                    result.Add(right.First());
                    right.Remove(right.First());
                }
            }

            return result;
        } 

<omitted>.csproj : error  : The element <AssemblyName> beneath element <Project> is unrecognized.  <omitted>.csproj

<omitted>.csproj : error  : The element <AssemblyName> beneath element <Project> is unrecognized.  <omitted>.csproj