4 2 4 2 4 2 Scales 20 1 10 10 1 Plain 0 0 0 1 1 200 0 adjustment1 1 1 0 1 Marks 0 0 1 1 1 200 0 adjustment2 1 1 1 1 Discrete 0 0 2 1 1 200 0 0 adjustment3 1 1 2