Field and Form Rules - what Execution Order

Field and Form Rules - what Execution Order

Hi everyone,
I have several rules in each section. (on form load, change, submission..
I read the web documentation from ME.. https://help.servicedeskplus.com/configurations/helpdesk/field-form-rules.html and example.

What is order of execution in each section. Which rule get executed first, and what happen if two rule try to change the same field?