using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static string InputPattern = "Input5";

    static List<string> GetInputList()
    {
        var WillReturn = new List<string>();

        if (InputPattern == "Input1") {
            WillReturn.Add("1");
            //1
        }
        else if (InputPattern == "Input2") {
            WillReturn.Add("2");
            //1.16667
        }
        else if (InputPattern == "Input3") {
            WillReturn.Add("3");
            //1.36111
        }
        else if (InputPattern == "Input4") {
            WillReturn.Add("7");
            //2.52163
        }
        else {
            string wkStr;
            while ((wkStr = Console.ReadLine()) != null) WillReturn.Add(wkStr);
        }
        return WillReturn;
    }

    static void Main()
    {
        List<string> InputList = GetInputList();
        int K = int.Parse(InputList[0]);

        List<int[]> NumList = ExecDFS(K);

        decimal Kitaiti = 0;

        foreach (int[] EachArr in NumList) {
            decimal Bunbo = 1;
            for (int I = 1; I <= EachArr.Length; I++) Bunbo *= 6;
            decimal Bunsi = 1;

            Kitaiti += EachArr.Length * Bunsi / Bunbo;
        }
        Console.WriteLine(Kitaiti);
    }

    //階乗を求める
    static decimal DeriveKaijyou(int pN)
    {
        decimal WillReturn = 1;
        for (int I = 2; I <= pN; I++) {
            WillReturn *= I;
        }
        return WillReturn;
    }

    struct JyoutaiDef
    {
        internal List<int> NumList;
    }

    //合計がKになるまでの、サイコロの目の組み合わせを列挙
    static List<int[]> ExecDFS(int pK)
    {
        var WillReturn = new List<int[]>();

        var stk = new Stack<JyoutaiDef>();
        JyoutaiDef WillPush;
        for (int I = 1; I <= 6; I++) {
            WillPush.NumList = new List<int>() { I };
            stk.Push(WillPush);
        }

        while (stk.Count > 0) {
            JyoutaiDef Popped = stk.Pop();

            //クリア判定
            if (Popped.NumList.Sum() >= pK) {
                WillReturn.Add(Popped.NumList.ToArray());
                continue;
            }

            for (int I = 1; I <= 6; I++) {
                WillPush.NumList = new List<int>(Popped.NumList) { I };
                stk.Push(WillPush);
            }
        }
        return WillReturn;
    }
}