s = """1 276199643589NISKES Nisha Ramesh Karsarpe O+ve 2 652355228200CHAKES Chanda Thakare A+ve 3 952345130951PRIKES Priya Premdas Devgune O+ve 4 867067867252SAMKES Samiksha Dilip Apurkar A+ve 5 833204928565KHUKES Khushi Rajahans Pantawne A+ve 6 621177486591TANKES Tanuja Chandrashekhar Amgaonk aOr+ve 7 644852777735SAKKES Sakshi Hemraj Khadase AB+ve 8 962439786909TANKES Tanushree Pralad Khandarkar O+ve 9 735707478715MANKES Manisha Ramesh Jangale A+ve 10 200338449939SIMKES Simran Vijay Mahajan A+ve 11 687100580009VAIKES Vaishnavi Prabhakar Sontakke B+ve 12 285966149202RUSKES Rushi Dilip Sonkusare B+ve 13 967578334682RAKKES Rakesh Rajesh Patil A+ve 14 921021476789PIYKES Piyush Duryodhan Thakre B+ve """ ids = s.split('\n') # print(ids) selected_lines = [ids[i] for i in range(1, len(ids), 4)] result = "" for line in selected_lines: # if 'SAN' in line: print(line)