Problems
Calculator
Calculator
Ilya's calculator performs two actions: multiplies the current number by three and adds one to it. The calculator now shows the number $1$. Help Ilya to determine the smallest number of operations, after which he will get the number $n$.
\InputFile
One integer $n~(10 \le n \le 10^9)$.
\OutputFile
Print the minimum number of operations.
Input example #1
1447
Output example #1
16