comefrom: <qiyuangong>401_Binary_Watch_1.py
code: def readBinaryWatch( num):
      return ['%d:%02d' % (h, m)
          for h in range(12) for m in range(60)
          if (bin(h) + bin(m)).count('1') == num]
masked: def sample_funcname ( var_0 ) :
      return [ '%d:%02d' % ( var_2 , var_3 ) for var_2 in range ( 12 ) for var_3 in range ( 60 ) if ( bin ( var_2 ) + bin ( var_3 ) ).count ( '1' ) == var_0 ]
  