T
r
i
g
o
n
a
l
O
c
t
a
h
e
d
r
a
l
I
c
o
s
a
h
e
d
r
a
l
U
(
3
)
⊃
2
O
:
T
2
U
(
3
)
⊃
2
O
:
T
2
A
0
A
3
E
2
T
1
T
2
E
1
/
2
E
5
/
2
G
3
/
2
T
o
t
a
l
0
1
0
0
0
0
0
0
0
1
1
0
0
0
0
1
0
0
0
3
2
1
0
1
0
1
0
0
0
6
3
1
0
0
1
2
0
0
0
1
0
4
2
0
2
1
2
0
0
0
1
5
5
1
0
1
2
4
0
0
0
2
1
6
3
1
3
2
4
0
0
0
2
8
7
2
0
2
4
6
0
0
0
3
6
8
4
1
5
4
6
0
0
0
4
5
9
3
1
3
6
9
0
0
0
5
5
1
0
5
2
7
6
9
0
0
0
6
6
1
1
4
1
5
9
1
2
0
0
0
7
8
1
2
7
3
9
9
1
2
0
0
0
9
1
1
3
5
2
7
1
2
1
6
0
0
0
1
0
5
1
4
8
4
1
2
1
2
1
6
0
0
0
1
2
0
1
5
7
3
9
1
6
2
0
0
0
0
1
3
6
1
6
1
0
5
1
5
1
6
2
0
0
0
0
1
5
3
1
7
8
4
1
2
2
0
2
5
0
0
0
1
7
1
1
8
1
2
7
1
8
2
0
2
5
0
0
0
1
9
0
1
9
1
0
5
1
5
2
5
3
0
0
0
0
2
1
0
2
0
1
4
8
2
2
2
5
3
0
0
0
0
2
3
1
⋮
⋮
⋮
⋮
⋮
⋮
⋮
⋮
⋮
⋮