static void Main(string[] args) { int[] Input = Console.ReadLine().Split(' ').Select(int.Parse).ToArray(); int[] Even = Input.Where(a => a % 2 == 0).ToArray(); int[] Odd = Input.Where(a => a % 2 != 0).ToArray(); if (Even.Length == 0) { Even = new int[1] { 0 }; } else if (Odd.Length == 0) { Odd = new int[1] { 0 }; } Console.WriteLine(Even.Sum() - Odd.Sum()); }