360:5*923 = 8*9*923
5*100*8017 = 8017*500 640:8*900 < 9*110*80 900:3*98*5 = 1500:*98 1704*(48:8) = 1704*(36:6)
2945*(700:7) > 2095*(140:7)(18950*3+2048*3)*37 > (2000+180)*33-5*4