First add the correct code ...you can use the RUN button to test it out.
First add the correct code lines to be jumbled and finally add a task description and use the CREATE TASK button at the bottom of the page to divert to the task page where you can test out your task and then copy that full URL to use with a class.
NOTE: the maximum supported length for the generated URL, which includes the code, is 1028 characters.
Finally enter a short task description: