ref: 65c3b339b547b49d1c1d11c56d86ca81f756e9be dir: /lib/json/test/inputs/y_number_huge_exp.json/
[0.4e00669999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999969999999006]