xtotlu
ytot
ztotl
0totlu
1tot
mkpt
nkptl
okptlu
pkpt
qkptl
bbqtl
cbqtlu
dbqt
ebqtl
fbqtlu
01qtlu
11qt
21qtl
31qtlu
41qt
psrt
qsrtl
rsrtlu
ssrt
tsrtl