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
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int[] dp = new int[n + 1];

		for(int i = 1; i <= n; i++) {
			dp[i] = 100000000;
		}

		for(int i = 1; i <= n; i++) {
			for(int pow6 = 1; pow6 <= n; pow6 *= 6) {
				if(i - pow6 >= 0) {
					dp[i] = Math.min(dp[i], dp[i - pow6] + 1);
				}
			}

			for(int pow9 = 1; pow9 <= n; pow9 *= 9) {
				if(i - pow9 >= 0) {
					dp[i] = Math.min(dp[i], dp[i - pow9] + 1);
				}
			}
		}

		System.out.println(dp[n]);

		sc.close();
	}
}
