To make it difficult to withdraw money, a certain bank allows its customers to withdraw only one of the following amounts in one operation:

* 1 yen (the currency of Japan)

* 6 yen, 6^2(=36) yen, 6^3(=216) yen, ...

* 9 yen, 9^2(=81) yen, 9^3(=729) yen, ...




At least how many operations are required to withdraw exactly N yen in total?

It is not allowed to re-deposit the money you withdrew.

Constraints

* 1 \leq N \leq 100000
* N is an integer.

Input

Input is given from Standard Input in the following format:


N


Output

If at least x operations are required to withdraw exactly N yen in total, print x.

Examples

Input

127


Output

4


Input

3


Output

3


Input

44852


Output

16
#include <iostream>
#include <cstdio>
using namespace std;

int n, mn = 1e9;

int f(int p, int q) {
	if (p == 0) return 0;
	return f(p / q, q) + p % q;
}

int main()
{
	int i;
	cin >> n;
	for (i = 0; i <= n; i++) mn = min(mn, f(i, 6) + f(n - i, 9));
    cout << mn << endl;
    return 0;
}