Consider the table below
<tbody>
COL1
COL2
COL3
COL4
EXPECTED RESULT
ROW1
100
200
100
300
COL1, COL3
ROW2
200
100
50
400
COL3
ROW3
100
100
100
100
COL1,COL2,COL3,COL4
ROW4
900
900
900
900
COL1,COL2,COL3,COL4
</tbody>
as an example i have added just four rows...