Question: The Genève-Servette HC competes in a league know by what name prior to the 2017-2018 season?
Related documents: [0]  [DOC] The Genève-Servette HC (also called "Servette" or "GSHC") is a professional ice hockey club based in Geneva, Switzerland and competing in the National League, the top tier of the Swiss hockey league system. The team plays their home games at the Patinoire des Vernets, which has a seating capacity of 7,135. During the 2015-16 regular season, the GSHC was the fourth most attended team in Switzerland, averaging 6,556 spectators. [END] 
[1]  [DOC] The National League (NL) is a professional ice hockey league in Switzerland. It is the top tier of the Swiss hockey league system and of the two-tier National League. Prior to the 2017–18 season, the league was officially called National League A. [END] 
Answer: 
National League A.
National League A.