# 0385. Mini Parser

<https://leetcode.com/problems/mini-parser>

## Description

Given a string s represents the serialization of a nested list, implement a parser to deserialize it and return *the deserialized* `NestedInteger`.

Each element is either an integer or a list whose elements may also be integers or other lists.

**Example 1:**

```
**Input:** s = "324"
**Output:** 324
**Explanation:** You should return a NestedInteger object which contains a single integer 324.
```

**Example 2:**

```
**Input:** s = "[123,[456,[789]]]"
**Output:** [123,[456,[789]]]
**Explanation:** Return a NestedInteger object containing a nested list with 2 elements:
1. An integer containing value 123.
2. A nested list containing two elements:
    i.  An integer containing value 456.
    ii. A nested list with one element:
         a. An integer containing value 789
```

**Constraints:**

* `1 <= s.length <= 5 * 104`
* `s` consists of digits, square brackets `"[]"`, negative sign `'-'`, and commas `','`.
* `s` is the serialization of valid `NestedInteger`.
* All the values in the input are in the range `[-106, 106]`.

## ac

```java
```


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