Wa `alaykum As-Salamu wa Rahmatullahi wa Barakatuh

 

In the Name of Allah, the All-Merciful, the Mercy-Giving

 

All praise is due to Allah. Peace and blessings be upon His Messenger Muhammad.

 

If you want to read both Fatihah and Surah in the second and the third that is fine. However, it would be sufficient for you to read only Fatihah in the third.

 

However, there is no hard and fast rule on this issue. There is nothing in the sources compelling us to be rigid on such matters.

 

Almighty Allah knows best.