ytlr
ztlrt
0tlrtv
1tlr
2tlrt
nkmrt
okmrtv
pkmr
qkmrt
rkmrtv
cbnrtv
dbnr
ebnrt
fbnrtv
gbnr
11nr
21nrt
31nrtv
41nr
51nrt
qsort
rsortv
ssor
tsort
usortv