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ACCOUNTS RECEIVABLE , NET | 12 Months Ended
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Dec. 31, 2018
ACCOUNTS RECEIVABLE, NET |
ACCOUNTS RECEIVABLE, NET | 4. ACCOUNTS RECEIVABLE, NET Accounts receivable, net consisted of the following:
|  | As of December 31,
|  | 2017 |  | 2018
Accounts receivable |  | 937 |  | 910
Less: allowance for doubtful accounts |  | (36) |  | (34)
Accounts receivable, net |  | 901 |  | 876
Movement of allowance for doubtful accounts was as follows:
|  | As of December 31,
|  | 2017 |  | 2018
Balance at beginning of the year |  | 34 |  | 36
Foreign currency adjustment |  | 2 |  | (2)
Balance at end of the year |  | 36 |  | 34

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