Second Largest and Smallest
Gustavo Moraes 
Brasil
Gustavo Moraes Brasil
Find the city with the second largest population and then the city with the second smallest population.
| Column | Type |
| id | numeric |
| city_name | varchar(50) |
| population | numeric |
| id | city_name | population |
| 1 | São Paulo | 12396372 |
| 2 | Rio de Janeiro | 6775561 |
| 3 | Brasília | 3094325 |
| 4 | Salvador | 2900319 |
| 5 | Fortaleza | 2703391 |
| 6 | Belo Horizonte | 2530701 |
| 7 | Manaus | 2255903 |
| 8 | Curitiba | 1963726 |
| 9 | Recife | 1661017 |
| 10 | Goiânia | 1555626 |
| 11 | Belém | 1506420 |
| 12 | Porto Alegre | 1492530 |
| city_name | population |
| Rio de Janeiro | 6775561 |
| Belém | 1506420 |