## arrange_it
### Instructions
Create a **function** named `arrange_phrase` , that takes a string literal, _sorts_ the words and returns it. Each word will contain a number that indicates the position of that word.
### Expected Functions
```rust
pub fn arrange_phrase(phrase: & str) -> String {
}
```
> Your heap allocations will be monitored to ensure that you do not make too many allocations, and that your allocations are reasonably sized.
### Usage
Here is a program to test your function
```rust
use arrange_it::*;
fn main() {
println!("{:?}", arrange_phrase("is2 Thi1s T4est 3a"));
}
```
And its output
```console
$ cargo run
"This is a Test"
$
```
### Notions
- [stack and heap ](https://doc.rust-lang.org/1.22.0/book/first-edition/the-stack-and-the-heap.html )
- [str ](https://doc.rust-lang.org/std/primitive.str.html )
