p5q5
q5q5r
r5q5r5
s5q5
t5q5r
ewr5r
fwr5r5
gwr5
hwr5r
iwr5r5
3ms5r5
4ms5
5ms5r
6ms5r5
7ms5
sdt5
tdt5r
udt5r5
vdt5
wdt5r
h4t5r
i4t5r5
j4t5
k4t5r
l4t5r5