I need the following working UDF modified 2 ways

Function ROll2D6()
ROll2D6 = Application.RoundUp(Rnd() * 6, 0) + Application.RoundUp(Rnd()
* 6, 0)
End Function

Way 1:
accept 2 integer inputs
int1 will tell the number of instances of Application.RoundUp(Rnd() * 6, 0)
to sum
int2 will replace the 6 in Application.RoundUp(Rnd() * 6, 0)
an exit check for if my.cell ISNUMBER()=TRUE

Way 2:
accept 2 integer inputs
int1 will tell the number of instances of Application.RoundUp(Rnd() * 6, 0)
to sum
int2 will replace the 6 in Application.RoundUp(Rnd() * 6, 0)
an exit check if the cell to the right ="fail"

thanks