Well, first I'd take care of getting people jobs, henca making money for the people and the country, but between your choices:
1. Education - Educatio is more improtant than many of us realize (yeah, I too hate school, but deep down (and I'm talking waaaaaaay deep down, but I know its good for me). Although good education can cost a lot, it can save you much more in the long end. By right education in school you can stop drug abuse, sexual diseases, pregnancy, crime (as most violent/hate/rasist crimes are commited by the poor and uneducated, while the rich and educated commit crimes like fraud, tax fraud, and stuff like that)... which will save money on police, hospitals, etc.
2. Food - Of course without food you candt have education nor medicine
3. Medicine - Medicine comes last, because if you dont have educated doctors you cant have good medical practices, and if you dont have food, well your health will go south anyway.
I would be a dictator, kinda Fidel Castro type
Hasta la Victoria Siempre!!!