SAP BI Text replacement path for two variable

Hello Friends,

  I need help .

I have  two variables in the report on Info object 0FISCPER3. Variable 1  and Variable 2 . Both are input ready in the selection screen .

I have two column in the reports ie Column1 and Column2 .

I want to create text variables  of replacement path so that  heading for column 1 will be the text that is  entered in variable 1 .

and heading for column2 will be the text that is entered in variable 2.

Please advise how to acheive this .

Many thanks

Mano