def keyData(data):
    json_str = [[float(e["sat_critical_reading_avg_score"]),
    float(e["sat_math_avg_score"]), float(e["sat_writing_avg_score"]),
    e["school_name"]] for e in data]
    return json.dumps(json_str)

def keyData(data):
  result = []
  for ele in data:
    try:
      result.append([
        int(ele['sat_critical_reading_avg_score']),
        int(ele['sat_math_avg_score']),
        int(ele['sat_writing_avg_score']),
        ele['school_name']
      ])
    except:
      pass
  return result