Adding space between and symbol and opening bracket

Hello!
Help me with adding space between and symbol and opening bracket...
Example:
'sample(1)' must corrected to 'sample (1)'
'1(' to '1 ('
'((()' to '( ( ()'

Create an action of the type "Replace" for the field where you want to change that
Search string:(
(without leading blank)
Replace string: (
(with leading blank).