<tokens>
<keyword> class </keyword>
<identifier> Util </identifier>
<symbol> { </symbol>
<keyword> function </keyword>
<keyword> int </keyword>
<identifier> abs </identifier>
<symbol> ( </symbol>
<keyword> int </keyword>
<identifier> n </identifier>
<symbol> ) </symbol>
<symbol> { </symbol>
<keyword> if </keyword>
<symbol> ( </symbol>
<identifier> n </identifier>
<symbol> &lt; </symbol>
<integerConstant> 0 </integerConstant>
<symbol> ) </symbol>
<symbol> { </symbol>
<keyword> return </keyword>
<symbol> - </symbol>
<identifier> n </identifier>
<symbol> ; </symbol>
<symbol> } </symbol>
<keyword> else </keyword>
<symbol> { </symbol>
<keyword> return </keyword>
<identifier> n </identifier>
<symbol> ; </symbol>
<symbol> } </symbol>
<symbol> } </symbol>
<symbol> } </symbol>
</tokens>
