# program which reads in the number of credits a student has
# and tells them what class they are based off that

creds = int(input("How many credits do you have? "))

if creds <= 29:
    print("You are a first-year!")

if creds >= 30 and creds <= 59:
    print("You are a sophomore!")

if creds >= 60 and creds <= 89:
    print("You are a junior!")

if creds >= 90:
    print("You are a senior!")

print("Have a nice day!")