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TAXATION- Summary Of Net Deferred Tax Assets (Details) - CNY (¥)
¥ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Dec. 31, 2020
TAXATION      
Net operating loss carry-forwards ¥ 82,028 ¥ 70,985  
Deductible advertising expenses 262,797 262,801  
Others 0 1,062  
Total deferred tax assets 344,825 334,848  
Less: valuation allowance ¥ (344,825) ¥ (334,848) ¥ (250,032)