91nn2c 81nn2 71nn 61nn2c 51nn2

kbnn2 jbnn ibnn2c hbnn2 gbnn

vkmn ukmn2c tkmn2 skmn rkmn2c

6tln2c 5tln2 4tln 3tln2c 2tln2

h3kn2 g3kn f3kn2c e3kn2 d3kn