w2bt4 x2bt4m y2bt z2bt4 02bt4m

ltct4m mtct ntct4 otct4m ptct

akdt bkdt4 ckdt4m dkdt ekdt4

zaet4 0aet4m 1aet 2aet4 3aet4m

o1et4m p1et q1et4 r1et4m s1et