Results to be displayed horizontally instead of vertically in reports

Summary:

We have a requirement where the results displayed in reports are vertical but we need to display that column horizontally.

Suppose say for example this the results in the report for a particular person,

But We need the Output as ABC, DEF, GHI, JKL in RTF.

I had prepared the RTF and used the below logic:

for-each Column_A end

Inside For each <?for-each-group:G_1;./Column_A ?>

Inside End <?end for-each-group?>

But it is displaying the Output as vertically

ABC

DEF

GHI

JKL

but we want it horizontally.

ABC, DEF, GHI, JKL

Please let me know if any one can help us with this.