Assuming your data begins in column A below:
c1 c2 c3
A 4 6 5
B 3 4 6
C 4 5 4
D 5 3 3
Create a clustered column chart
Click once on the data for c3
Go to the standard toolbar and select Chart -> Chart Type -> Line
Click once on the data for c2
Go to the standard toolbar and select Chart -> Chart Type -> Line