Require Cell colour change when adding alphanumeric value.

[UNNI_UNNI]

Hi Everyone,

Can any one help me please?

I wish to change the cell colour to yellow whenever I input any of these alphanumeric values in cell (number first and text follows)

I have attached a reference herewith for better understanding my query.

Thanks in advance!
Capture 111.PNG

[protonLeah]

=(substitute(substitute(a1,"n",""),"d","")*1)<13