# c07ex04.py
#    College classification

def main():
    print "College Classification\n"
    credits = input("Enter number of credits: ")
    if credits < 7:
        cls = "Freshman"
    elif credits < 16:
        cls = "Sophomore"
    elif credits < 26:
        cls = "Junior"
    else:
        cls = "Senior"
    print "The classification is", cls

if __name__ == '__main__':
    main()