Asefru 17: d asefru yettwabna $ef 12 n yefyar, d win yefen lqaleb ilelli deg wayen yerzan tame$rut texlev ur teif ara yiwen n usekkil, ama ayen yerzan akat d yiwen s 10 n tun segmi yebna usefru almi d afyir wis 10 anagar afyir (11- 12) s 5 n tuniqin acku d afyir n wallus.