Good Evening and Thank you in advance for any help.

I am trying to copy a formula in 1000 rows, without it changing, yet keeping the reference number the same.

ex.
=COUNTIF(MON!C10:C70,KEY!E3)
* *=C10:C70 NEEDS TO REMAIN THE SAME
while E3 counts up E4, E5, E6 etc, to E1000

=COUNTIF(MON!C10:C70,KEY!E4)
=COUNTIF(MON!C10:C70,KEY!E5)
=COUNTIF(MON!C10:C70,KEY!E6)
=COUNTIF(MON!C10:C70,KEY!E7)

When I copy and paste from he first cell it ends up counting the formula also.

=COUNTIF(MON!C11:C71,KEY!E4)
=COUNTIF(MON!C12:C72,KEY!E5)
=COUNTIF(MON!C13:C73,KEY!E6)
etc etc

HOW do I keep the formula from changing while having the reference number count up??

Thank you for any help!