|Since our friend Razor2.3 thinks this might be homework, I'll give you the concept and ask you to try it on you own. If you can't get it to work, come on back with what you tried and we'll offer some more suggestions...|
You'll need to use a Nested IF function, along with an OR function.
In this case, the value_if_true would be A1 and the value_if_false would be another IF function testing your next criteria, e.g.
Review the Excel Help files on the IF function where they give examples of Nested IF's.