int n = Convert.ToInt32(Console.ReadLine());
string[] arr_temp = Console.ReadLine().Split(' ');
int[] arr = Array.ConvertAll(arr_temp, Int32.Parse);
int[] count = new int[] { 0, 0, 0 };
decimal[] fraction = new decimal[] { 0, 0, 0 };

foreach (int num in arr)
{
    if (num == 0)
        count[2]++;
    else if (num > 0)
        count[0]++;
    else
        count[1]++;
}

for(int idx = 0; idx < fraction.Length; idx++)
{
    fraction[idx] = (decimal)count[idx] / (decimal)arr.Count();
}

foreach(decimal num in fraction)
{
    Console.WriteLine(string.Format("{0:N6}", num));
}