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());
}
