month = int(input("Enter a month [1-12] "))

if month==1 or  month==3 or month==7 or month == 8\
or month== 10 or month == 12:
    print("31 days!")
elif month==4 or month==6 or month==9 or month==11:
    print("30 days!")
else:
    print("28 days!")

if month==2:
    print("28 days!")
elif month==4 or month==6 or month==9 or month==11:
    print("30 days!")
else:
    print("31 days!")