You are given a very large integer `n`

, represented as a string, and an integer digit `x`

. The digits in `n`

and the digit `x`

are in the **inclusive** range `[1, 9]`

, and `n`

may represent a **negative** number.

You want to **maximize **`n`

**'s numerical value** by inserting `x`

anywhere in the decimal representation of `n`

. You **cannot** insert `x`

to the left of the negative sign.

- For example, if
`n = 73`

and`x = 6`

, it would be best to insert it between`7`

and`3`

, making`n = 763`

. - If
`n = -55`

and`x = 2`

, it would be best to insert it before the first`5`

, making`n = -255`

.

Return *a string representing the maximum value of *

`n`

**Example 1:**

Input:n = "99", x = 9Output:"999"Explanation:The result is the same regardless of where you insert 9.

**Example 2:**

Input:n = "-13", x = 2Output:"-123"Explanation:You can make n one of {-213, -123, -132}, and the largest of those three is -123.

**Constraints:**

`1 <= n.length <= 10`

^{5}`1 <= x <= 9`

- The digits in
`n`

are in the range`[1, 9]`

. `n`

is a valid representation of an integer.- In the case of a negative
`n`

, it will begin with`'-'`

.

class Solution {
public String maxValue(String n, int x) {
}
}