500 - {5*[409-(2^3*3-21)^2]*110^3}:5
=500 - {5*[409-(8*3-21)^2*1331000}:5
=500- {5*[409-(24-21)^2*1331000}:5
=500-{5*[409-(3)^2]*1331000}:5
=500-{5*[409-9]*1331000}:5
=500-{5*400*1331000}:5
=500-{2000*1331000}:5
=500-2662000000:5
=500-532400000
= - 532399500