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=input()	#N=a+b

ans=float("inf")
for a in range(N+1):
	b=N-a
	cnt=0
	for i in range(8,-1,-1):
		t=6**i
		if a>=t:
			cnt+=(a/t)
			a=a%t

	for i in range(8,-1,-1):
		t=9**i
		if b>=t:
			cnt+=(b/t)
			b=b%t
	ans=min(ans,cnt)

print ans
		