Thu thuat lay key 1.4.7(3) mjh p0st len cho kax ae kug tham khao! Neu ae nao pjt uj m0g ae chem gjo nhe nhe tj, k0n ae nao chua pjt neu thay co jck tkank mjh fat! Dau tjen, lay (ma so+ 7382)x3=m0t so nao do! Neu so do co 6 chu so thj do chjnh la key! K0n neu jt h0n 6 chu so thj them chu so 1dag trc thj se thah key! K0n neu nhju h0n 6 chu so thj 6 so ku0j la key