Getting a grasp of Brasilia's addresses may be a little perplexing at first, as they are usually shortened to acronyms. Here are some useful tips:
The Monumental Axis divides the city into north and south sectors. Acronyms ended in N refer to sectors on the northern side, while those ended in S are on the south.
SHS/SHN - Hotel sectors (Setor Hoteleiro)
SCS/SCN - Commercial sectors (Setor Comercial)
SQS/SQN - Residential sectors (Superquadras)
CLS/CLN (or SCLS/SCLN) - Local commerce sectors (Comércio Local) along the wings.
SES/SEN - Embassie sectors (Setor de Embaixadas)