1 | ||||||
y | ||||||
|
P
x |
|||||
Q
x |
R
x |
S
x |
T
x |
U
x |
V
mÎn |
W |
X
x |
PO
x |
PP | PQ | PR | PS | PT |
PU
x |
PV | PW | PX | QO | QP | |
QR
x 2 |
QS | QT | QU | QV | QW | QX |
RO
m |
R1 |