(
2
0
1
)
+
<
(
5
-
4
3
)
-
(
2
0
1
)
,
(
-
4
8
-
3
)
-
(
2
0
1
)
>
=
(
2
0
1
)
+
<
(
3
-
4
2
)
,
(
-
6
8
-
4
)
>
=
(
2
0
1
)
+
<
(
3
-
4
2
)
>
.