# Problem Statement:

Given a positive integer ’n’, find and return the minimum number of steps that ’n’ has to take to get reduced to 1. You can perform any one of the following 3 steps:

1.) Subtract 1 from it. (n = n — 1) ,

2.) If n is divisible by 2, divide by 2.( if n % 2 == 0, then n = n / 2 ) ,

3.) If n is divisible by 3, divide by 3. (if n % 3 == 0, then n = n / 3 ).

**Input format :**

The first and the only line of input contains an integer value, ‘n’.

**Output format :**

Print the minimum number of steps.

**Sample Input 1 :**

`4`

**Sample Output 1 :**

`2`

**Explanation of Sample Output 1 :**

`For n = 4`

Step 1 : n = 4 / 2 = 2

Step 2 : n = 2 / 2 = 1

**Sample Input 2 :**

`7`

**Sample Output 2 :**

`3`

**Explanation of Sample Output 2 :**

`For n = 7`

Step 1 : n = 7 - 1 = 6

Step 2 : n = 6 / 3 = 2

Step 3 : n = 2 / 2 = 1