Can anyone please provide me XSLT for XML transformation. 

**Input:-**

```
<RootElement>
    <JSON>[{"51000510000000000008":"Registro guardado exitosamente."}]</JSON>
</RootElement>

```

**Ouptut:-**

```
<Root>  
    <pair>
        <key>51000510000000000008</key>
        <value>Registro guardado exitosamente.</value>
    </pair>
</Root>

```