# Need help with this code block
**URL:** https://forum.dynamobim.com/t/need-help-with-this-code-block/86509
**Category:** Revit
**Created:** [February 23, 2023, 3:41am UTC](https://forum.dynamobim.com/t/need-help-with-this-code-block/86509 "2023-02-23T03:41:47Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Bamboola](https://forum.dynamobim.com/u/Bamboola)
#### Post date: [February 23, 2023, 3:41am UTC](https://forum.dynamobim.com/t/need-help-with-this-code-block/86509/1 "2023-02-23T03:41:47Z")
I wonder if someone could tell me how to get this code block (concatenate), see picture below:
Thank you
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### Author:  [@GavinNicholls](https://forum.dynamobim.com/u/GavinNicholls)
#### Post date: [February 23, 2023, 3:50am UTC](https://forum.dynamobim.com/t/need-help-with-this-code-block/86509/2 "2023-02-23T03:50:17Z")
This is a typical code block, so you can type lots of things in it. In this case it is just adding two lists of strings together with a separator. You can do this by making a code block and typing something like this in it:
> variable\_list1 + “\_” + variable\_list2
Once you do, you should see the inputs/outputs change in the code block. In this case the two variables can be a different name, they just imply an input is going to be given to them and used in the code block.
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### Author:  [@Bamboola](https://forum.dynamobim.com/u/Bamboola)
#### Post date: [February 23, 2023, 3:56am UTC](https://forum.dynamobim.com/t/need-help-with-this-code-block/86509/3 "2023-02-23T03:56:10Z")
Thank you, got it
👍🏻