text: import os
  import sys
  
  LOGO = """
            ____         ______
           / __ \       |  ____|
          | |  | |______| |__ ___  _ __ ___ ___
          | |  | |______|  __/ _ \| '__/ __/ _ \\
          | |__| |      | | | (_) | | | (_|  __/
           \___\_\      |_|  \___/|_|  \___\___|
  
                       Selim Sami
              University of Groningen - 2020
              ==============================
  """
  
  LOGO_SEMICOL = """
  ;          ____         ______
  ;         / __ \       |  ____|
  ;        | |  | |______| |__ ___  _ __ ___ ___
  ;        | |  | |______|  __/ _ \| '__/ __/ _ \\
  ;        | |__| |      | | | (_) | | | (_|  __/
  ;         \___\_\      |_|  \___/|_|  \___\___|
  ;
  ;                     Selim Sami
  ;            University of Groningen - 2020
  ;            ==============================
  """
  
  
  def check_if_file_exists(file):
      if not os.path.exists(file) and not os.path.exists(f'{file}_qforce'):
          sys.exit(f'ERROR: "{file}" does not exist.\n')
      return file
  