61-49=71-35=

664-523=320+480=430+457=

792-232=133+407=412+285=

134+273=935-630=320+475=

540+448=604-604=446+451=

704+236=835-125=648-540=

398-148=138+161=469+411=

321+416=298+600=275+425=

346-246=487-277=311+589=

252+216=224+266=178-121=

74+421=315+485=305+195=

864-644=432+268=718+172=

502+288=243+357=299-196=

279+621=117-117=531+453=

910-210=557-455=425+471=

473+427=672-562=380+420=

975-775=975-865=136+464=

325+475=622+178=432+238=

987-786=381+519=525-412=

678+178=736-626=411+583=

833-732=961-641=718-618=

168-164=166+232=416+484=

896-796=287-187=