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- def ispalin(s):
- i,j=0,len(s)-1
- while i<j:
- if s[i] is not letter:
- i+=1
- continue
- if s[j] is not letter:
- j-=1
- continue
- if s[i]!=s[j]:
- return False
- i+=1
- j-=1
- return True
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