<div>which could look in pd code like this:<br>
<br>
<br>
     &lt;your lists here&gt;<br>
       |<br>
      [list prepend]\<br>

       |\__________\_                        &lt;-- make a bigger list consisting of all your lists<br>

       |                    \[t l ]<br>
       |<br>
       |<br>
       |      [13 5 (                              &lt;-- set values for output here;<br>
       |       |                                           this means index 13 from the fifth &quot;list&quot;<br>
    __|___[t b l ]<br>
   /   |             |<br>
  /   |             [unpack ]<br>

[list ]             |          |<br>
 |                   |   ___[* 20]                &lt;-- list number * &quot;list&quot; length<br>
 |                  [+ ]                             &lt;-- and add to the index<br>
 |                   |<br>
 |__________[set, adddollar $1 (<br>
[   (                                                 &lt;-- empty message box<br>
 |<br>
 |<br>
&lt;output&gt;<br><br><br><br><br>
ciao<br> <br></div>-- <br>ypatios<br>