Find the matching numbers between two sets

I have two columns in same table i need to extract the matching numbers and count them .

There are no documentation for intersection in knime groupby node. Set operations are behaving wrongly.

Eg

Card. List 1. List2 output

Card 1 [ 1 2 3 4 5 6 ] [ 3 4 5 7] [3 4 5 ]

Card 2 [ 34 56 78 35 ] [2 44 67 ]

Card 3 [ 34 67 98 76] [ 67 56 45 34 ] [34 67]