xxx1 format, e.g. 1001 Ljubljana, 4001 Kranj. Big companies which receive large amounts of mail are designated their special postcodes in the x5xx format. South Korea South Korea uses a system similar to Western addressing, but previously used a system similar to Japanese addressing. South Korean addresses start with the largest unit (country, province), as with other East Asian countries. Spain In Spain, the addresses are generally formatted as follows: 5ºB means 5th floor (Spanish: quinto), door B. Also, there may be door number, printed as 1ª (primera-first). Suffixes "o" and "a" derives from Spanish words piso (floor) which is masculine and puerta (door) which is feminine. Some doors may be indicated with the abbreviations Izq. or Dcha., to indicate either left (Izquierda) or right (Derecha). Streets and avenues can be indicated with the abbreviations C. (for calle) and Av. (for avenida). Sri Lanka Sri Lanka Post recommends the following format: Sri Lanka uses a five-digit postal code. Generally, the last line SRI LANKA is omitted when posting within the country. Addresses are usually written in English and Sinhala. Sweden In Sweden, the address is generally formatted as follows: The postal code is always a five-digit number divided into groups of three and two (e.g. SE-414 73) with the prefix SE (ISO-code for Sweden) used only if sent from abroad. It is also possible to replace the street name line with a PO box (e.g. Box 51). Switzerland In Switzerland, the address is generally formatted as follows: The canton abbreviation (SO, VD in the examples) is needed only for cities/town that have the same name but in another canton for example: Renens and Renan which were both, in the past, called Renens, the difference stays today and Renens is often mentioned as Renens VD. Taiwan In Taiwan, addresses are regulated by the Department of Household Registration, while mails are handled by the Chunghwa Post. As a result, senders are required to write addresses in different formats in different situations. Thailand In Thailand, address are generally formatted as follows: Turkey Turkish addressing system is as follows: Ukraine Some neighbourhoods in Ukraine may be planned in such a way that some, or most, apartment buildings don't face a named street. In this case, a number of expedients can be used. In older neighbourhoods, a "main" building may have the same number as one or more "subsidiary" buildings accessible via driveways behind the