# Find the number of day in certain month.

month = int(input("enter the number of month: "))
if month==1 or month==3 or month==5 or month==7 or month==8 or month==10 or month==12:
    print("31 days")
elif month==2:
    print("28 0r 29 days")
elif month==4 or month==6 or month==9 or month==11:
    print("30 days")
else:
    print("invalid, enter the number of month between 1-12")

