Question
import re
s = 'abc123 xyz666 lmn-11 def77'
re.sub(r'\b([a-z]+)(\d+)', r'\2\1:', s)a.
‘123abc: 666xyz: lmn-11 77def:’
b.
‘77def: lmn-11: 666xyz: 123abc’
c.
‘abc123:’, ‘xyz666:’, ‘lmn-11:’, ‘def77:’
d.
‘abc123: xyz666: lmn-11: def77’
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