1000-1=999 bile care exista
999:3+26=rosii
333+26=359 bile rosii
(999-359):2=galbene
640:2=320 bile galbene
999-359-320=bile albe +bile negre
320=ba+bn
320=bn+20+bn
300=bn×2
bile negre =150
bile albe=170
Verificare:359+320+150+170=999
679+320=999
999=999 ADEVARAT