(Program
  (Switch
  { (NumberLiteral)
  ->(NumberLiteral) }
    (Case
      (NumberLiteral)
      (ExpressionStatements
        (NumberLiteral)))
    (Case
      (NumberLiteral)
      (ExpressionStatements
      { (NumberLiteral)
      ->(NumberLiteral) }))
    (Case
      (NumberLiteral)
      (ExpressionStatements
        (NumberLiteral)))))