# List combination

**URL:** <https://forum.dynamobim.com/t/list-combination/78965>\
**Category:** Lists-Logic\
**Tags:** dynamo\
**Created:** [July 22, 2022, 2:01pm UTC](https://forum.dynamobim.com/t/list-combination/78965 "2022-07-22T14:01:43Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Fernand77](https://avatars.discourse-cdn.com/v4/letter/f/74df32/32.png) [@Fernand77](https://forum.dynamobim.com/u/Fernand77)\
**Post date:** [July 22, 2022, 2:01pm UTC](https://forum.dynamobim.com/t/list-combination/78965/1 "2022-07-22T14:01:43Z")

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Hello all,

Who can help me with the following.

I have a list A and a list B and I want to create a list with these lists as shown in the code block called result.

Thank you very much for thinking along.

 ![afbeelding](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/1/3/13c90cb2a86811453a8adcd481435bf6e81c7b82.png)

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**Author:** ![Nick\_Boyts](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/nick_boyts/32/76313_2.png) [@Nick\_Boyts](https://forum.dynamobim.com/u/Nick_Boyts)\
**Post date:** [July 22, 2022, 2:08pm UTC](https://forum.dynamobim.com/t/list-combination/78965/2 "2022-07-22T14:08:49Z")

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When in doubt, simplify. Having 1-to-1 inputs never fails.

 ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/f/6/f61d952430a4e2916b4c10ee84c25ebc2e6cc4c5.png)

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**Author:** ![Fernand77](https://avatars.discourse-cdn.com/v4/letter/f/74df32/32.png) [@Fernand77](https://forum.dynamobim.com/u/Fernand77)\
**Post date:** [July 22, 2022, 2:34pm UTC](https://forum.dynamobim.com/t/list-combination/78965/3 "2022-07-22T14:34:20Z")

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Thank you so much again Nick!!

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**Author:** ![jw.vanasselt](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/jw.vanasselt/32/133533_2.png) [@jw.vanasselt](https://forum.dynamobim.com/u/jw.vanasselt)\
**Post date:** [July 22, 2022, 5:58pm UTC](https://forum.dynamobim.com/t/list-combination/78965/4 "2022-07-22T17:58:02Z")

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You give the wrong person the solution 😉