import java.io.; import java.math.; import java.security.; import java.text.; import java.util.; import java.util.concurrent.; import java.util.function.; import java.util.regex.; import java.util.stream.*; import static java.util.stream.Collectors.joining; import static java.util.stream.Collectors.toList;

class Result {

/*
 * Complete the 'plusMinus' function below.
 *
 * The function accepts INTEGER_ARRAY arr as parameter.
 */

public static void plusMinus(List<Integer> arr) {
// Write your code here
    int size = arr.size();
    double negNumbers = 0;
    double posNumbers = 0;
    double numZeros = 0;
    for (int num : arr) {
        if (num < 0) {
            negNumbers++;
        } else if (num > 0) {
            posNumbers++;
        } else {
            numZeros++;
        }
    }
    System.out.println(String.format("%.5f", posNumbers/size));
    System.out.println(String.format("%.5f", negNumbers/size));
    System.out.println(String.format("%.5f", numZeros/size));
}

}

public class Solution { public static void main(String[] args) throws IOException { BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));

    int n = Integer.parseInt(bufferedReader.readLine().trim());

    List<Integer> arr = Stream.of(bufferedReader.readLine().replaceAll("\\s+$", "").split(" "))
        .map(Integer::parseInt)
        .collect(toList());

    Result.plusMinus(arr);

    bufferedReader.close();
}

}