duln euln1 fuln1n guln huln1
2kmn1 3kmn1n 4kmn 5kmn1 6kmn1n
rbnn1n sbnn tbnn1 ubnn1n vbnn
g2nn h2nn1 i2nn1n j2nn k2nn1
5son1 6son1n 7son 8son1 9son1n