(Program
  (Module
    (Identifier))
  (Function
    (Empty)
    (Identifier)
    ([])
  { (Match
    {-(Empty)-}
    {-([])-})
  ->(
    {+(Match
      {+(Pattern
        {+(Identifier)+}
        {+(Call
          {+(Identifier)+}
          {+(Empty)+})+})+}
      {+([])+})+}
    {+(Match
      {+(Identifier)+}
      {+(
        {+(Pattern
          {+(
            {+(Integer)+}
            {+(Integer)+})+}
          {+(
            {+(Call
              {+(Identifier)+}
              {+(Empty)+})+}
            {+(Call
              {+(Identifier)+}
              {+(Empty)+})+}
            {+(Pattern
              {+(Identifier)+}
              {+(Empty)+})+})+})+}
        {+(DefaultPattern
          {+(
            {+(Call
              {+(Identifier)+}
              {+(Empty)+})+}
            {+(Break
              {+(Empty)+})+})+})+})+})+}) }))