给你一个产品数组 `products` 和一个字符串 `searchWord` ，`products` 数组中每个产品都是一个字符串。

请你设计一个推荐系统，在依次输入单词 `searchWord` 的每一个字母后，推荐 `products` 数组中前缀与 `searchWord` 相同的最多三个产品。如果前缀相同的可推荐产品超过三个，请按字典序返回最小的三个。

请你以二维列表的形式，返回在输入 `searchWord` 每个字母后相应的推荐产品的列表。

示例 1：

    输入：products = ["mobile","mouse","moneypot","monitor","mousepad"], searchWord = "mouse"
    输出：[
    ["mobile","moneypot","monitor"],
    ["mobile","moneypot","monitor"],
    ["mouse","mousepad"],
    ["mouse","mousepad"],
    ["mouse","mousepad"]
    ]
    解释：按字典序排序后的产品列表是 ["mobile","moneypot","monitor","mouse","mousepad"]
    输入 m 和 mo，由于所有产品的前缀都相同，所以系统返回字典序最小的三个产品 ["mobile","moneypot","monitor"]
    输入 mou， mous 和 mouse 后系统都返回 ["mouse","mousepad"]

示例 2：

    输入：products = ["havana"], searchWord = "havana"
    输出：[["havana"],["havana"],["havana"],["havana"],["havana"],["havana"]]

示例 3：

    输入：products = ["bags","baggage","banner","box","cloths"], searchWord = "bags"
    输出：[["baggage","bags","banner"],["baggage","bags","banner"],["baggage","bags"],["bags"]]

示例 4：

    输入：products = ["havana"], searchWord = "tatiana"
    输出：[[],[],[],[],[],[],[]]

提示：

- `1 <= products.length <= 1000`
- `1 <= Σ products[i].length <= 2 * 10^4`
- `products[i]` 中所有的字符都是小写英文字母。
- `1 <= searchWord.length <= 1000`
- `searchWord` 中所有字符都是小写英文字母。