Using Iteration variable in thymeleaf

Hi I am new to thymeleaf and am converting ma old project from jsp to thymeleaf.I am trying to convert a piece of code written in jsp which is :

<logic:iterate id="someForm" name="formName" property="nameList" indexId="i">
<%if (i%2==0)
{
 className="even";
 }
 else
 {
  className="odd";
 }
 %>
//some code here

can anyone help me with converting this code in thymeleaf ??