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(-85)+(-56)+40=
(-76)+(-16)+50=
-66+19+14=
-87+87-5+5=
-99+101+54=
49-49+19-19=
66-23+14-9=
19+15-14-3+4-5+6+8=
(-54)+17-13+12-11=
(-400)+(+200)+(+600)=
-67+47+37+27=
-50+40+30=
-78+19+