Is my timeline correct. Did I put the $400 in the correct year of 1 thru 28 or should I put it under year 0 and leave year 28 blank?

5. Bridgette wants to retire 28 years from now. She decides to start saving $400 each month into a Roth IRA starting at the end of this month. If the IRA is expected to earn an average annual return of 10% compounded monthly, how much will she have in the account at the end of 28 years? Round to two decimal places.

Years	0	4	8	12	16	20	22	24	28
Cash Flow		$400	$400	$400	$400	$400	$400	$400	$400