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# A Python source file in utf-8, with BOM. 

math = "3×4 = 12, ÷2 = 6±0" 

 

import sys 

 

if sys.version_info >= (3, 0): 

assert len(math) == 18 

assert len(math.encode('utf-8')) == 21 

else: 

assert len(math) == 21 

assert len(math.decode('utf-8')) == 18