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(raw_input())

ans = 100000

d = []

for a in range(1,7):d.append( 6**a )
for a in range(1,6):d.append( 9**a )
d.append(1)
d.sort()
#print d

dp = [1000000000] * 100001
dp[0] = 0
for x in range(0,n+1):
  for y in d:
    if x-y >= 0:
      dp[x] = min( dp[x-y] + 1, dp[x] )

print dp[n]
