using System; using System.Collections.Generic; using System.IO; using System.Linq; class Solution {

static void Main(String[] args) {
    int n = Convert.ToInt32(Console.ReadLine());
    //string[] arr_temp = Console.ReadLine().Split(' ');
    //int[] arr = Array.ConvertAll(arr_temp,Int32.Parse);
    decimal positiveNum = 0, negativeNum = 0, zeroNum = 0, temp = (decimal)1 / n;

    foreach (string ch in Console.ReadLine().Split(' '))
    {
    Int16 num = Convert.ToInt16(ch);
    if (num > 0)
    {
    ++positiveNum;
    }
    else if (num < 0)
    {
    ++negativeNum;
    }
    else if (num == 0)
    {
    ++zeroNum;
    }
    }

    Console.WriteLine(Math.Round(positiveNum * temp, 6));
    Console.WriteLine(Math.Round(negativeNum * temp, 6));
    Console.WriteLine(Math.Round(zeroNum * temp, 6));

}

}