About Qiyyam ul Lail

I read a hadith that whoever recites 1000 verses (ayahs) during Qiyam-ul-Lail (the night prayer) will be counted among the Qanitin (devout obedient ones). So, I want to ask: if I recite the last Juz (para) of the Quran, which contains more than 500 verses but i only repeat last 100 verses, and I repeat those same 100 verses 10 times, will my action be considered equivalent to reciting 1000 verses, or will it only be considered as reciting 100 verses?