This code is giving no error but is not printing my "goal." Which is to print a year of highschool when a number is input. Instead the code is only printing "Not in High School" every time, every number. Can someone please explain to me what I did wrong?


grade_number = input("What year of high school are you in? ")


if grade_number == 9:

print("Freshman")


elif grade_number == 10:

print("Sophomore")


elif grade_number == 11:

print("Junior")


elif grade_number == 12:

print("Senior")


else:

print("Not in High School")