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
n = int(input())

arr6 = []
for i in range(10):
	arr6.append(6**i)

arr9 = []
for i in range(10):
	arr9.append(9**i)


ans = float("inf")
for i in range(n+1):
	count = 0
	tmp = i
	while tmp > 0:
		t = 0
		while arr6[t] <= tmp:
			t+=1

		tmp -= arr6[t-1]
		count += 1

	tmp = n-i
	while tmp > 0:
		t = 0
		while arr9[t] <= tmp:
			t += 1
		tmp -= arr9[t-1]
		count += 1

	ans = min(ans,count)

print ans