def trim(s): if len(s) == 0: return s while True: if s[0] == ' ': s = s[1:] if len(s) == 0: return s elif s[-1] == ' ': s = s[:-1] if len(s) == 0: return s else: return s
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Grey_kindle
def trim(s): if len(s) == 0: return s while True: if s[0] == ' ': s = s[1:] if len(s) == 0: return s elif s[-1] == ' ': s = s[:-1] if len(s) == 0: return s else: return s