218+(30000+2000+200+218)x5
=218x6+30000x5+2000x5+200x5
=1308+150000+10000+1000
=162308
218+(30000+2000+400+18)x5
=218+30000x5+2000x5+400x5+18x5
=218+150000+10000+2000+90
=162308
218+(40000-7582)x5
=218+40000x5-7582x5
=218+200000-(7000+500+80+2)x5
=218+200000-(35000+2500+400+10)
=218+200000-37910
=162308
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