where are these two suburban train relationships?
• Banlieue Est : Constantine - Bekira - Hamma Bouziane - Kef Salah - Didouche Mourad - Zighoud Youcef.
• Banlieue Ouest : Chalet des Pins - Sidi Mabrouk - Oued Hamimine - El Khroub - - Ouled Rahmoune.