*lambda

print((lambda x,y: x + y)(10, 20))
>>30
 

*.join(list)

'구분자'.join(list)

a=['a','b','c']

result="".join(a)

print(result)
 
>>>
abc
 
from sympy import re


a=["abc","def"]
result="_".join(a)
print(result)
>>>
abc_def

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