rendered paste body+--------------+---------------+
| exchange | city |
+--------------+---------------+
| 1 | NANPA |
| 1978 | State of Mass |
| 1978364 | NPA 978364 MA |
| 19783641234 | Target Result |
| 1978363 | NPA 978363 MA |
| 1978362 | NPA 978362 MA |
| 1978361 | NPA 978361 MA |
+--------------+---------------+
1, NULL, NULL, NULL, NANPA
1, 978, NULL, NULL, State of Mass
1, 978, 364, NULL, NPA 978364 MA
1, 978, 364, 1234, Target Result
1, 978, 363, NULL, NPA 978363 MA
1, 978, 362, NULL, NPA 978362 MA
1, 978, 361, NULL, NPA 978361 MA