using System.CodeDom.Compiler;

using System.Collections.Generic;

using System.Collections;

using System.ComponentModel;

using System.Diagnostics.CodeAnalysis;

using System.Globalization;

using System.IO;

using System.Linq;

using System.Reflection;

using System.Runtime.Serialization;

using System.Text.RegularExpressions;

using System.Text;

using System;

​

class Solution {

    public static decimal GetDecimal(int number)

    {

        return Convert.ToDecimal(number);

    }

​

    // Complete the plusMinus function below.

    public static void plusMinus(int[] arr) {

        List<int> numbers = arr.ToList();

        decimal positves = 0;

        decimal zeros = 0;

        decimal negatives = 0;

        positves = GetDecimal(arr.Count(x => x > 0)) / GetDecimal(arr.Length);

        zeros = GetDecimal(arr.Count(x => x == 0)) / GetDecimal(arr.Length);

        negatives = GetDecimal(arr.Count(x => x < 0)) / GetDecimal(arr.Length);

        Console.WriteLine(String.Format("{0:0.000000}", positves));

        Console.WriteLine(String.Format("{0:0.000000}", negatives));

        Console.WriteLine(String.Format("{0:0.000000}", zeros));

    }

​

    public static void Main(string[] args) {

        int n = Convert.ToInt32(Console.ReadLine());

​

        int[] arr = Array.ConvertAll(Console.ReadLine().Split(' '), arrTemp => Convert.ToInt32(arrTemp))

        ;

        plusMinus(arr);

    }

}

​