368+337=705
169+206=375
555+235=790
124+568=692
399+202=601
290+458=748
376+443=819
541+376=917
795+134=929
667+250=917
145+578=723
388+364=752
639+172=711
479+199=678
198+653=851
840-238=602
578-359=519
967-548=419
685-368=317
721-404=317
709-412=297
628-145=483
540-360=180
919-777=142
889-698=191
