Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Where is the headquarters of the place whose population in 2011 was 3811738?

### Inputs:
table_name: table, columns: ['Code', 'District', 'Headquarters', 'Population (2011)', 'Area (km²)', 'Density (/km²)', 'Official website']

### Response:
SELECT Headquarters FROM table WHERE Population (2011) = 3811738