double p = 1;
                double x = Convert.ToDouble(Console.ReadLine());
                int k= Convert.ToInt32(Console.ReadLine());
                for (double n = 0; n < k; n++)
                {
                    p *= (1 + ((Math.Pow(-1, n) * Math.Pow(x, 2 * n)) / ((n + 2) * (n + 1))));
                    Console.WriteLine(p);
                }
double n=0;
p=1;
while(n<k)
{
 p *= (1 + ((Math.Pow(-1, n) * Math.Pow(x, 2 * n)) / ((n + 2) * (n + 1))));
                    Console.WriteLine(p);
n++;
}
n=0;
p=1;
do
{
 p *= (1 + ((Math.Pow(-1, n) * Math.Pow(x, 2 * n)) / ((n + 2) * (n + 1))));
                    Console.WriteLine(p);
n++;
}
while(n<k)