public static void Main()
Console.WriteLine("enter n ");
int n = int.Parse(Console.ReadLine());
for(int i = 1 ; i <= n ; i++)
Console.WriteLine("the even sum is: " + evenSum);
Console.WriteLine("the odd sum is: " + oddSum);
hefres = evenSum - oddSum;
Console.WriteLine("the hefres is: " + hefres);
else if(oddSum > evenSum )
hefres = oddSum - evenSum;
Console.WriteLine("the hefres is: " + hefres);
Console.WriteLine("the hefres is: " + hefres);