comefrom: <qiyuangong>202_Happy_Number_1.py
code: def isHappy( n):
      seen_numbers = set()
      while n > 1 and n not in seen_numbers:
          seen_numbers.add(n)
          n = sum(map(lambda x: int(x) * int(x), list(str(n))))
      return n == 1
masked: def sample_funcname ( var_0 ) :
      var_2 = set ( )
      while var_0 > 1 and var_0 not in var_2 :
          var_2.add ( var_0 )
          var_0 = sum ( map ( lambda var_10 : int ( var_10 ) * int ( var_10 ) , list ( str ( var_0 ) ) ) )
      return var_0 == 1
  