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CHANGES IN ACCOUNTING POLICIES AND DISCLOSURES (Details) - CNY (¥)
¥ in Thousands
Jun. 30, 2022
Dec. 31, 2021
CHANGES IN ACCOUNTING POLICIES AND DISCLOSURES    
Lease liabilities ¥ 33,213 ¥ 46,729
Right-of-use assets 37,952 44,288
Lease liability ¥ (13,745) ¥ (13,404)