Using inputbox to insert multiple numbers into formula

I have a function on a speadsheet that uses multiple search parameters to find a match on another spreadsheet tab. Each time I use this the information I am referncing can/will be in different locations. What Im looking to do is use something like an inputbox macro that I can type in a cell location(i.e.B10), and it insert it into the right location in the formula. And I would need to do this like 10x for each of the values so that the funciton now has all of the locations updated to the new sheets. Im completely new to this inputbox function so if anyone can point me in the right direction that would be great.

Originally Posted by royUK

What is your function?

=INDEX('Set 2'!$E$5:$E$14,MATCH(B5&"_"&C5&"_"&D5,INDEX('Set 2'!$B$5:$B$14&"_"&'Set 2'!$C$5:$C$14&"_"&'Set 2'!$D$5:$D$14,0),0))