How to Parallel String Starts With in SAS - Code Snippet

* Task: Parallel String Starts With
* Language: SAS

%macro parallel_string_starts_with() 
    * Implementation for Parallel String Starts With
    %let result = ...; * Initialize variable
    * TODO: Implement core logic here
    * Step 1: Prepare data
    * Step 2: Process Parallel String Starts With
    %put("Done");
%mend;