year = int(input("What is your year group?"))

if year == 9 :
    print("You are a junior student")

if year == 10 :
    print("You are a junior student")
    
if year == 11 :
    print("You are a senior student")

if year == 12 :
    print("You are a senior student")

if year == 13 :
    print("You are a senior student")