def trim(s):
length = len(s)
if (length == 0):
return ''
sIndex = 0;
eIndex = -1;
sVal = s[sIndex]
eVal = s[eIndex]
while(sVal == ' '):
if (sIndex == length - 1):
break;
sIndex += 1
if (sVal == ' '):
while(eVal == ' '):
eIndex += -1
return s[sIndex: length + eIndex + 1]
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B O O M!
def trim(s):
length = len(s)
if (length == 0):
return ''
sIndex = 0;
eIndex = -1;
sVal = s[sIndex]
eVal = s[eIndex]
while(sVal == ' '):
if (sIndex == length - 1):
break;
sIndex += 1
sVal = s[sIndex]
if (sVal == ' '):
return ''
while(eVal == ' '):
eIndex += -1
eVal = s[eIndex]
return s[sIndex: length + eIndex + 1]