"""
I have a string (game_string) that jumbles its dollar signs (in the format ".$.$.$.$." with a total of exactly 9 characters). Since it jumbles I can have "$.$.$.$.." or ".$.$.$$.." or ".$$.$.$.." ... you get the idea. I have a function:
"""
def move_dollar_to_the_left(game_string, position_number, to_move):

    return game_string
"""
This function is supposed to move a dollar sign to the left by the amount the to_move is set. So for instance:

123456789
..$.$..$$

I want to move the 8th dollar sign to the left by 1 so the result will be:

123456789
..$.$.$.$

How do I make sure that the game_string is returned in the change format? i.e. the dollar sign has been moved to where the user wants to and it returns the final outcome
"""