Function xx(ByVal a As Range, ByVal b As Range, ByVal c As Range)
If a + b >= 7 And a + b <= 11 Then xx = 1: Exit Function
If a + c >= 7 And a + c <= 11 Then xx = 1: Exit Function
If b + c >= 7 And b + c <= 11 Then xx = 1: Exit Function
xx = 0
End Function
Function xx(ByVal a As Range, ByVal b As Range, ByVal c As Range)
If a + b >= 7 And a + b <= 11 And a + c >= 7 And a + c <= 11 Then xx = 1: Exit Function
If b + c >= 7 And b + c <= 11 Then xx = 1: Exit Function
xx = 0
End Function