#month_days.py
#determine number of days a month has

month =eval(input("Enter month number: "))

if month<1 or month>12:
    print("bogus month.  Bye!")
elif month==4 or month==6 or month==9 or month==11:
    print("this month has 30 days")
elif month == 2:     #ignore leap years...
    print("this month has 28 days")
else:
    print("this month has 31 days")