A:=REF(C<O AND C<REF(C,1) AND V<REF(V,1),4) AND REF(C<O AND C<REF(C,1) AND V<REF(V,1),2) AND C<O AND V<REF(V,1);B:=REF(C>O AND C>REF(C,1),5) AND REF(C>O AND C>REF(C,1),3) AND REF(C>O AND C>REF(C,1),1) ; XG:A AND B;