94-20= 83-70= 63-20= 15-10=
92-70= 55-10= 42-40= 45-40=
52-20= 41-10= 79-40= 96-20=
33-20= 68-30= 64-50= 92-60=
38-10= 86-30= 94-20= 97-40=
94-20= 83-70= 63-20= 15-10=
92-70= 55-10= 42-40= 45-40=
52-20= 41-10= 79-40= 96-20=
33-20= 68-30= 64-50= 92-60=
38-10= 86-30= 94-20= 97-40=