6-14= 11+16= 1-1= 16+2=
2+0= 18-9= 9+9= 11-18=
10-16= 18+16= 2+1= 12-15=
19-5= 2+8= 15-7= 17+14=
1+15= 10+18= 13-2= 19-11=
4-15= 12+18= 17+5= 11+2=
4+5= 2+8= 14+7= 5+4=
8-19= 6-14= 2-8= 17+17=
0-5= 10+11= 7-10= 17-18=
2+6= 1+12= 11+11= 8+8=