import java.io.*;
import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        double[] counts = new double[]{0, 1, 0, 0, 0, 0, 0};
        for (int i = 1; i < n; i++) {
            double[] nexts = new double[7];
            for (int j = 1; j <= 6; j++) {
                nexts[j] = counts[j - 1] * (6 - j + 1) / 6 + counts[j] * j / 6;
            }
            counts = nexts;
        }
        System.out.println(new java.math.BigDecimal(counts[6]).toPlainString());
        System.out.println(Arrays.toString(counts));
    }
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public String nextLine() throws Exception {
        return br.readLine();
    }
    
    public String next() throws Exception {
        if (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
}