Integer to Roman Conversion

Given an integer N, convert it to its corresponding Roman numeral representation. Roman numerals comprise seven symbols: I, V, X, L, C, D, and M.

Example:

Input:

N = 2

Output:

II

Explanation:

The integer 2 is represented by the Roman numeral II.

Input:

Input:

12

Output:

XII

Explanation:

The integer 12 is represented as XII.

Example:

Input:

27

Output:

XXVII

Explanation:

The integer 27 is represented as XXVII.

Constraints:

• 1 <= T <= 10²
• 1 <= N <= 4 * 10³ - 1

Note: You do not need to print the output; just implement the conversion function.