39-30= 78-70= 34-30= 89-80=
78-70= 75-70= 56-50= 84-80=
26-20= 49-40= 86-80= 94-90=
73-70= 76-70= 41-40= 66-60=
23-20= 25-20= 33-30= 77-70=
39-30= 78-70= 34-30= 89-80=
78-70= 75-70= 56-50= 84-80=
26-20= 49-40= 86-80= 94-90=
73-70= 76-70= 41-40= 66-60=
23-20= 25-20= 33-30= 77-70=