How to manage data same this?

[apikeairt]

If I wanna manage data follow Fig.1, in end of line is data 1 zigzag with data 2 and end part is a data 1. In my method logic is slowly.

How to manage data easy more than my method?

[Mohammad_Nawar]

I am not sure if I understand u correctly but you can use repeat node as picture below.

[apikeairt]

Oh thank you. When after repeated already, If I wanna increased “0” in [8] to [20], how to solve it??

[Mohammadz]

@apikeairt you can do this