Amedyaz deg wamud-agi ur yesseqdec ara kkan yiwet n tmeɣrut (temgarad seg usefru ɣer wayeḍ ,daɣen temgarad ula deg yiwen usefru, ula deg yiwet n tseddart temgarad) am umedyaagi i(cid:18)eddan akka.A B C D E ..., deg usefru-agi lebni n tmeɣrut n usefru ilelli ur tqin ara ɣer tmeɣrut n tatrarit (A-A-B), (A-A-A-B), (A-A-B-C) d tensayit acku yal afir d acu usekkil s wacu ikeffu ɣef waya nebɣa ad d-nini : tuget seg wamud-agi n yisefra n Σmar Belqada ur yebni ara ɣef tmeɣrut tilellit, yebna kkan s talɣa n usefru mebla tameɣrut md: