How much coding in your life have you done?
More than you, and more than anyone you know. I was coding on mainframes at the university when I was still in Jr. High School.
If it is so easy, why do you not do it and post it here for everyone to +karma you?
What language do you want (I've programmed in dozens)? Making the assumption that favor points are stored in a variable, all that is needed is a single line inserted into the code setting this variable just as gameplay starts.
In C or C++:
favor = 9999;
In Smalltalk:
favor := 9999.
In Prolog (one of many ways to do it):
favor(9999).
In APL:
favor ← 9999
In J:
favor =: 9999