Distribute Items Problem Statement

Calculate the number of ways to distribute a given number of items 'N' among three people such that each person gets at least one item, and only one person receives the maximum number of items.

Input:

N    # Total number of items

Output:

ways    # Total number of distribution ways

Example:

Input:

7

Output:

Number of ways to distribute items

Constraints:

• 0 <= N <= 10^9
• Time Limit: 1 second

Note:

You do not need to print anything explicitly; the function handles output. Implement the function to compute the answer.