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CONSOLIDATED BALANCE SHEETS (Parenthetical) ¥ in Thousands, $ in Thousands | Dec. 31, 2018 CNY (¥) shares | Dec. 31, 2017 CNY (¥) shares
--- | --- | ---
Deferred revenue | ¥ 124,250 | ¥ 114,396
Accounts payable | 13,583 | 23,414
Accrued and other liabilities | 256,325 | 418,998
Income taxes payable | 207,114 | 202,314
Amounts due to related parties | ¥ 2,696 | ¥ 3,430
Preferred shares, shares authorized | 1,666,667 | 1,666,667
Preferred shares, shares issued | 0 | 0
Preferred shares, shares outstanding | 0 | 0
Common Class A [Member] |  |
Ordinary shares, shares authorized | 66,666,667 | 66,666,667
Ordinary shares, shares issued | 38,756,289 | 34,206,939
Ordinary shares, shares outstanding | 38,756,289 | 34,206,939
Common Class C [Member] |  |
Ordinary shares, shares authorized | 8,333,333 | 8,333,333
Ordinary shares, shares issued | 4,708,415 | 4,708,415
Ordinary shares, shares outstanding | 4,708,415 | 4,708,415
Variable Interest Entity, Primary Beneficiary [Member] |  |
Deferred revenue | ¥ | ¥ 116,753 | ¥ 109,878
Accounts payable | ¥ | 8,996 | 19,809
Accrued and other liabilities | ¥ | 192,302 | 219,009
Income taxes payable | ¥ | 206,871 | 201,810
Amounts due to related parties | ¥ | ¥ 2,417 | ¥ 3,430

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