Boil potatoes and peel the skin once boiled (use a toothpick to see if they're cooked). Set them aside.
Boil water, add salt, and cook macaroni until done (preferably NOT al dente)
In the meantime, make some boiled eggs (leave eggs in the boiled water for about 8 minutes).
Once macaroni is done, cool it with water and put them in a large bowl.
Cut boiled potatoes into small pieces and add them into the bowl.
Cut eggs into small pieces and add them into the bowl.
Add mayonnaise, garlic salt, and pepper into the bowl and mix them all together.
Sprinkle some paprika on top (optional).