import re
text = "Cms1291682971 Gleandaleacademy Fee Collecti 0000548Andb Renewal 402Ecfev845410001"
print( re.sub(r'\b(?:([a-zA-Z]+)(\d+)|(\d+)([a-zA-Z]+))\b', r'\1\3 \2\4', text) )
aW1wb3J0IHJlCnRleHQgPSAiQ21zMTI5MTY4Mjk3MSBHbGVhbmRhbGVhY2FkZW15IEZlZSBDb2xsZWN0aSAwMDAwNTQ4QW5kYiBSZW5ld2FsIDQwMkVjZmV2ODQ1NDEwMDAxIgpwcmludCggcmUuc3ViKHInXGIoPzooW2EtekEtWl0rKShcZCspfChcZCspKFthLXpBLVpdKykpXGInLCByJ1wxXDMgXDJcNCcsIHRleHQpICk=