-78+20+26-46-100-22= (-78-22-100)+(20+26-46)=-200+0=-200-51-37-22+59+24+27= (-51+24+27)+(-37-22+59)=0+0=0
-78+20+26-46-100-22= (-78-22-100)+(20+26-46)=-200+0=-200
-51-37-22+59+24+27= (-51+24+27)+(-37-22+59)=0+0=0