public static void Main()
int total = 0, temp1 = 0, temp2 = 0;
string[] ops = {"5", "-2", "4","C", "D","9","+","+"};
int[] Sum = new int[ops.Length];
for(int i = 0; i <ops.Length;i++)
Sum[k] = Sum[k-1] + Sum[k-2];
Sum[k] = Convert.ToInt16(ops[i]);
Console.WriteLine("Sum: "+total);