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
def g(n, a):
    for i in range(1, 100):
        if a**i > n:
            return a**(i-1)
    return -1

dp = {}
def solve(n):
    if n < 6:
        return n
    if not n in dp:
        a = g(n, 6)
        b = g(n, 9)
        dp[n] = min(solve(n-a)+1, solve(n-b)+1)
    return dp[n]

# assert solve(127) == 4
# assert solve(3) == 3
# assert solve(44852) == 16

print solve(input())