| 294043-(670000+600000)=-975957 | 975947+(482530-875671)=582806 |
| -876163-(-644914-729085)=497836 | 240199-(-184277+497569)=-73093 |
| 738501+(-333100-443392)=-37991 | 689634-(507996+249638)=-68000 |
| 97805-(152625+919521)=-974341 | -906978+(280000-289235)=-916213 |
| -107852-(-556647+18515)=430280 | 139548+(952935-990000)=102483 |
| -879362-(192634-936996)=-135000 | -598749-(33000+8251)=-640000 |
| -278880+(-856153+535033)=-600000 | -289590+(-480852+770442)=0 |
| -200000+(895816-618408)=77408 | -138761+(-606873-226600)=-972234 |
| -562086-(-486490+625158)=-700754 | 438886-(-79367-242964)=761217 |
| 637567-(-685623+332190)=991000 | 370000-(320033-406033)=456000 |
| 437628-(-700416+291156)=846888 | -518835-(-336837-981998)=800000 |
| 869133+(-201958-167000)=500175 | -238000-(319084-75084)=-482000 |
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