回答編集履歴
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        answer	
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         @@ -1,4 +1,3 @@ 
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            joinを使います
         
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1 
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            ```
         
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            import re
         
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            t='''
         
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         @@ -7,9 +6,7 @@ 
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            ????183
         
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       8 
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            ????5248
         
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       9 
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            '''
         
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            r=[re.sub(r'\D', '', s) for s in t.split()]
         
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            print( 
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            print(r)
         
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            f=t.split()
         
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            print(f)
         
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            r=re.sub(r'\D', '', t)
         
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            print('\n'.join(r.split()))
         
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       15 
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            ```
         
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