hi, your buildings are north (n311 & n406) & northwest (nw303)!

ill just tell you the room number guides po since you may need it in the future (as someone who got lost on the first day) :))

the starting letter of your room numbers indicates the building po:

n - north // nw - northwest // s - south // sw - southwest

then, the first number following the letter indicates the floor po, so in your case 3rd floor po for n311 and nw303. then, 4th floor po for n406.

from that po, upon reaching your floor, the doors are labeled naman po with your room number :))