Your task is to write function which takes string and list of delimiters as an input and returns list of strings/characters after splitting given string.
Example:
```python
multiple_split('Hi, how are you?', [' ']) => ['Hi,', 'how', 'are', 'you?']
multiple_split('1+2-3', ['+', '-']) => ['1', '2', '3']
```
List of delimiters is optional and can be empty, so take that into account.
Important note: Result cannot contain empty string.
def multiple_split(string, delimiters=[]):
    print(string, delimiters)
    if not string:  return []  # trivial case
    if not delimiters:  return [string]  # trivial case
    for d in delimiters[1:]:
        string = string.replace(d, delimiters[0])
    tokens = string.split(delimiters[0])
    return [t for t in tokens if t]
def multiple_split(string, delimiters=[]):
    print(string, delimiters)
    if not string:  return []  # trivial case
    if not delimiters:  return [string]  # trivial case
    for d in delimiters[1:]:
        string = string.replace(d, delimiters[0])
    tokens = string.split(delimiters[0])
    return [t for t in tokens if t]