Ixef wis sin: Tasleḍt n tucḍiwin n tira di tenfaliwin n yinelmaden -ignudan  i inudan -Amedya seg udlis n yilygan n tira n BOUAMARA K .: i iruḥ = i-gruḥ i + y/ i = iamassaɣ akked umatar y,i yefka-d imesli damaynut gg