Changes

:::* The script, when executed, should print out "Isaac is 72 years old!"

:::Example run: <source>

Isaac is 72 years old!

</source><br>Try the check script as you are working through a script to sometimes get hints.<br>

::* The script, when executed, should print out "10 + 2 * 5 = 20"

:::Example run: <source>

10 + 2 * 5 = 20

</source>Try the checking script as you are working through a script to sometimes get hints.<br><br>