To make a Major Chord: (M)
                     skip 3, skip 2

To make a minor chord: (m)
                     move the third down one note.

To make the 7th: (7)
                     skip one left from the root.

To find the fourth and fifth (chords which sound good together): (4,5)
                     skip4, skip 1.

To find the minor chords: (mc)
                     skip 2 to the left.