class Program

    {

        static void Main()

        {

            int[] ar1 = { , , , , ,  };

            int[] ar2 = { , , , , , ,  };

            var segments = new ArraySegment<int>[]

            {

                new ArraySegment<int>(ar1, , ),

                new ArraySegment<int>(ar2, , )

            };

            var sum = SumOfSegments(segments);

            Console.WriteLine("sum of all segments: {0}", sum);

            Console.ReadKey();

        }

        static int SumOfSegments(ArraySegment<int>[] segments)

        {

            int sum = ;

            foreach (var segment in segments)

            {

                for (int i = segment.Offset; i < segment.Offset + segment.Count; i++)

                {

                    sum += segment.Array[i];

                }

            }

            return sum;

        }

    }