When I input this:

```
>>>tokenize('<[2{12.5 6.0}](3 -4 5)>')

```

I want to get this back:

```
['<', '[', 2, '{', 12.5, 6.0, '}', ']', '(', 3, -4, 5, ')', '>']

```

Basically, how would I keep it so that the input converts everything into the list while keeping the numbers their original value.