12+6= 13+7= 12-6= 9+9= 15-6= 18-7= 12+6= 11+8= 1+15= 13-9= 17-8= 4+7= 15-2= 0+5= 12-8= 12-4= 5+9= 6+8= 14-5= 7+7= 13-13= 18-9= 7+5= 6+8=2+9= 11-6= 18-0= 16-10=3+8= 6+9= 12-10= 18-8= 7+8= 4+9= 12-8= 0+9= 8+8= 13-8= 12-6= 15-6=3+8= 7+5= 8-8= 8-0= 13-5= 11-4= 17+3= 19-10=12+4= 5+9= 15+2= 9+4= 20-4= 14-3= 4+6= 6+2= 20-5= 12-9= 2+14= 7+2= 17+3= 19-6= 4+10= 17-3= 20-8= 20-14= 9-5= 4+12= 5+6= 1+2= 12-5= 9+6= 3+1= 9+7= 6-3= 14-13= 3+11= 1+8= 19-11= 20-4= 17-3= 10+3= 15-11= 18-16= 19-1= 10-7= 16-12= 8+3= 10+2= 7+12= 9+7= 19-15= 3+15= 11-10= 13-2= 15-11= 17+3= 15-8= 2+18= 1+12=
