import re
s="""A25-54 plus affinities targeting,Demo (AA F21-54),
A25-49 Artist Affinity Targeting,M21-49 plus,plus plus A 21+ targeting"""
print(re.findall(r'(?:A|A |AA F|M)\d+(?:-\d+|\+)',s))
aW1wb3J0IHJlCnM9IiIiQTI1LTU0IHBsdXMgYWZmaW5pdGllcyB0YXJnZXRpbmcsRGVtbyAoQUEgRjIxLTU0KSwKQTI1LTQ5IEFydGlzdCBBZmZpbml0eSBUYXJnZXRpbmcsTTIxLTQ5IHBsdXMscGx1cyBwbHVzIEEgMjErIHRhcmdldGluZyIiIgpwcmludChyZS5maW5kYWxsKHInKD86QXxBIHxBQSBGfE0pXGQrKD86LVxkK3xcKyknLHMpKQ==