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‘3’-‘1’ ‘3’-‘1’ 2 ‘3’-‘1′ Traceback (most recent call last): File "pyshell2", line 1, in mody "3”1’ TypeError: unsupported operand type(s) for -: ‘str’ and ‘sti
‘3’-‘1’ ‘3’-‘1’ 2 ‘3’-‘1′ Traceback (most recent call last): File "pyshell2", line 1, in mody "3”1’ TypeError: unsupported operand type(s) for -: ‘str’ and ‘sti