Task: Data-Imputation (source dataset: tablib)

Please fill in the missing value in the input table. The missing value is denoted by '[MISSING]'. Please only return the value filled in. Do not return the whole table.

No explanation, return the value filled in JSON format: {"value": "filled_value"}. 

Input Table:
|   Unnamed: 0 |   CNIC | Account No_x   |   Account No_y |   Mobile No | DOB        | CustomerName   | Gender   |
|-------------:|-------:|:---------------|---------------:|------------:|:-----------|:---------------|:---------|
|            0 |      7 | 1              |              4 |        2412 | 1991-03-31 | X              | F        |
|            1 |      7 | 1              |              4 |        2659 | 1991-04-30 | D              | F        |
|            2 |      7 | 4              |              4 |        2412 | 1991-03-31 | X              | F        |
|            3 |      7 | 4              |              4 |        2659 | 1991-04-30 | D              | F        |
|            4 |     11 | 3              |              1 |        2401 | 1990-04-30 | U              | M        |
|            5 |     11 | 3              |              1 |        2219 | 1990-12-31 | O              | M        |
|            6 |     11 | 2              |              1 |        2401 | 1990-04-30 | U              | M        |
|            7 |     11 | 2              |              1 |        2219 | 1990-12-31 | O              | M        |
|            8 |     13 | 2              |              2 |        2696 | 1990-01-31 | K              | M        |
|            9 |     13 | 2              |              2 |        2407 | 1990-02-28 | I              | M        |
|           10 |      4 | 1              |              3 |        2856 | 1991-01-31 | S              | M        |
|           11 |      4 | 1              |              3 |        2513 | 1991-02-28 | U              | F        |
|           12 |      4 | 1              |              1 |        2308 | 1991-05-31 | I              | F        |
|           13 |      4 | 3              |              3 |        2856 | 1991-01-31 | S              | M        |
|           14 |      4 | 3              |              3 |        2513 | 1991-02-28 | U              | F        |
|           15 |      4 | 3              |              1 |        2308 | 1991-05-31 | I              | F        |
|           16 |      4 | 3              |              3 |        2856 | 1991-01-31 | S              | M        |
|           17 |      4 | 3              |              3 |        2513 | 1991-02-28 | U              | F        |
|           18 |      4 | 3              |              1 |        2308 | 1991-05-31 | I              | F        |
|           19 |      4 | 1              |              3 |        2856 | 1991-01-31 | S              | M        |
|           20 |      4 | 1              |              3 |        2513 | 1991-02-28 | U              | F        |
|           21 |      4 | 1              |              1 |        2308 | 1991-05-31 | I              | F        |
|           22 |      3 | [MISSING]      |              2 |        2098 | 1990-06-30 | E              | M        |
|           23 |      1 | 1              |              4 |        2421 | 1991-07-31 | T              | F        |



row_idx: 22
col_idx: 2
col_name: Account No_x
label: 2
output: value: 2
tablib_key: tables/job=github_000005/batch=003598/SmpRj-s670pmbt7rMGzJOfW8UrjpoI5vSmWsVeVqMAg=