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