I have two global classes, both implements Database.batchable

1. CleanDuplicateContacts
2. RestoreMergedContactInfo

#1 is kind of cleaning up my duplicates, so its merging records which in turn delete some contacts
#2 is parsing my recycle bin and find records that got deleted due to a merge and updating the winning record's custom field with the delete record's info.

now my question is 
i have scheduled both of them in a single schedulable class like this 

global class ScheduleRestoreMergedContactInfo implements Schedulable {
   global void execute(SchedulableContext sc) {
   
           System.Debug('Starting Cleanup');
           CleanDuplicateContacts controller1 = new CleanDuplicateContacts();
           Integer batchSize1 = 100;
           database.executebatch(controller1, batchSize1);
           System.Debug('Finished Cleanup');
           
           System.Debug('Starting Gathering Info');
        RestoreMergedContactInfo controller2 = new RestoreMergedContactInfo() ;
        Integer batchSize2 = 1000;
        database.executebatch(controller2 , batchSize2);
        System.Debug('Finished Gathering Info');  
    
   }
}

will this work? will they run one after another or in parallel?
Let me know.