Hello, I am having trouble with simple IF conditions.

IF

Cell1 < 10

Cell1 >-10

Cell2 <10

Cell2 > -10

Cell3 <10

Cell3 >-13

if true then U

If false then X

Tried commas and semi colons between conditions but not working..

Is is possible that due to cell numbers being generated from formulas is affecting it?

thanks in advance for any help