(Program
  (For
    (BooleanOperator
      (Operator
      { (Identifier)
      ->(Identifier) }
        (Other "in")
        (Identifier))
      (Other "&&")
      (Assignment
        (Identifier)
        (NumberLiteral)))
    (RelationalOperator
      (Identifier)
      (Other "<")
      (Identifier))
    (MathOperator
      (Identifier)
      (Other "++"))
    (ExpressionStatements
      (ExpressionStatements
        (FunctionCall
        { (Identifier)
        ->(Identifier) })))))