Combine specific Columns in a loop

Hello everyone,

I have a data set with 32 columns (string), where I would like to combine the value of a column with the respective following column. For example, the values from column 1 and 2, 2 and 3, 3 and 4 etc. should be combined in one column and separated by this delimiter “-”. As I would not like to carry out this process manually 31 times with a Column Combiner Node, I would appreciate an example workflow of how this can be implemented dynamically.

I have already tried a set up (see screenshot), but this only combines the column names and not the specific values.

Thank you dear community for your support in advance!