o4p9s6 p4p9 q4p9s r4p9s6 s4p9

dvq9 evq9s fvq9s6 gvq9 hvq9s

2lr9s 3lr9s6 4lr9 5lr9s 6lr9s6

rcs9s6 scs9 tcs9s ucs9s6 vcs9

g3s9 h3s9s i3s9s6 j3s9 k3s9s