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>>> import string
>>> s='adbecf'
>>>
tt=string.maketrans("abc","ABC")
>>> s.translate(tt,"")
'AdBeCf'
>>>
s.translate(tt,"")
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please enter an integer:-8
>>> if x<0:
... print 'negative'
... elif x==0:
... print 'zero'
... else:
... print 'positive'
...
negative
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