Foreach with multiple lists

[mamadt...@gmail.com]

I have a list of links "max-links":  set max-links sort-on [(- label)] link-set [max-one-of my-out-links [label]] of turtles

I have divided this list into two and set all turtles at end1 in one list "max-turtles1" and all turtles at end2 in another list "max-turtles2". 

Now, i've defined a foreach with both max-turtles1 and max-turtles2:

    foreach max-turtles1 max-turtles2

    [

      [a b] ->

      ask a 

      [

        ask my-out-links with [not member? self keep] [die]

        set max-links sort-on [(- label)] link-set [max-one-of my-out-links [label]] of turtles

        set max-turtles1 map [k -> [end1] of k] max-links

      ]

      ask b 

      [

        ask my-in-links with [not member? self keep2] [die]

        set max-links sort-on [(- label)] link-set [max-one-of my-out-links [label]] of turtles

        set max-turtles2 map [k -> [end2] of k] max-links

      ]

    ]

As shown here, "ask my-out-links with [not member? self keep] [die]" is executed for max-turtles1 and  "ask my-in-links with [not member? self keep2] [die]" is executed for max-turtles2. 

However, after each iteration on both lists, the max-links list and max-turtles1 and 2 lists have to be updated before the foreach can move on the next items. 

I tried to manage this list update by once again setting (defining) the lists. But it's not doing what I intended.