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Consider a directed graph whose vertices are numbered from 1 to n. There is an edge from a vertex i to a vertex j iff either j = i + 1 or j = 3 * i. The task is to find the minimum number of edges in a path in G from vertex 1 to vertex n.

**Example 1:**

**Input: **N = 9
**Output:** 2
**Explanation**: 9 -> 3 -> 1, so
number of steps are 2.

â€‹**Example 2:**

**Input**: N = 4
**Output:** 2
**Explanation**: 4 -> 3 -> 1, so
number of steps are 2.

**Your Task: **

You don't need to read input or print anything. Your task is to complete the function **minimumStep()** which takes the **n**** **as inputs and returns the answer.

**Expected Time Complexity:** O(log n)

**Expected Auxiliary Space:** O(1)

**Constraints:**

1 ≤ n ≤ 10^{5}

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Shortest path from 1 to n

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