| -412763+141504-529837=-801096 | 170000+931401-455772=645629 |
| -330645+932770+94487=696612 | -360000+641847+300000=581847 |
| -947440-39823+105347=-881916 | 295946-250000-470000=-424054 |
| 235832-276131+320299=280000 | 850000-151771-614443=83786 |
| -844038-122200+589311=-376927 | 232056+913665-686147=459574 |
| -217476-384484+603000=1040 | 631011-594600+158594=195005 |
| -288828+961273-140592=531853 | -216720+250254-980000=-946466 |
| -484000+448374+677859=642233 | -8806-710143-200000=-918949 |
| -867000+610000-158044=-415044 | -2113-691992-100000=-794105 |
| -118377-21952-81188=-221517 | 600000-530000-638371=-568371 |
| 58140+782707-933664=-92817 | -932288-240000+382288=-790000 |
| -260603+600000+170000=509397 | 271200-272000+681528=680728 |
