A drawer contains $12$ red markers, $12$ yellow markers, $12$ blue markers, and nothing else. Without looking, what is the fewest number of markers that must be taken out of the drawer to be sure that at least $2$ of them are the same color? (Noetic Learning Mathematics Contest - Fall 2020 - Grade 4 - Problem 10) 
Overseas Competition->Knowledge Point->Combinatorics->Pigeonhole Principle->Worst Case in Pigeonhole Principle Problems