>>> from service import service3

>>> service3('servicesA.txt', 'MAIN')
>>> with open('MAIN.txt', 'r') as fm:
...    sm = fm.readlines()
>>> sm
['A23 MOR 155\n', 'A23 MOR 136\n', 'A23 MOR 52\n', 'A26 MOR 57\n', 'A44 AFT 246\n', 'A47 AFT 123\n', 'A75 NIG 275\n']

>>> service3('servicesA.txt', 'SAFE')
>>> with open('SAFE.txt', 'r') as fs:
...    ss = fs.readlines()
>>> ss
['A25 MOR 72\n', 'A25 MOR 87\n', 'A27 MOR 80\n', 'A27 MOR 156\n', 'A46 AFT 114\n', 'A48 AFT 147\n', 'A48 AFT 140\n', 'A74 NIG 249\n', 'A74 NIG 97\n']

>>> service3('servicesC.txt', 'CLEA')
>>> with open('CLEA.txt', 'r') as fc:
...    sc = fc.readlines()
>>> sc
['A24 MOR 236\n', 'A24 MOR 75\n', 'A24 MOR 45\n', 'A45 AFT 117\n', 'A45 AFT 135\n', 'A45 AFT 149\n', 'A73 NIG 203\n', 'A73 NIG 36\n', 'A73 NIG 95\n']

>>> service3('servicesC.txt', 'REPA')
>>> with open('REPA.txt', 'r') as fr:
...    sr = fr.readlines()
>>> sr
['A28 MOR 140\n', 'A28 MOR 256\n', 'A28 MOR 64\n', 'A49 AFT 211\n', 'A49 AFT 108\n', 'A49 AFT 71\n', 'A76 NIG 166\n', 'A76 NIG 62\n', 'A76 NIG 106\n']