public static double Result(MyQueue queue, MyStack stack)
{
double s = 1;
double x = 0;
int c = stack.Count;
for (int i = 0; i < c / 2; i++)
{
double q = queue.Pop();
double st = stack.Pop();
x = q * q - st * st;
s *= x;
}
return(s);
}
