+
|
:
|
=4
|
|||
+
|
n
|
×
|
n
|
+
|
n
|
×
|
2
|
-
|
=1
|
||
-
|
n
|
-
|
n
|
-
|
n
|
-
|
×
|
=8
|
|||
=2
|
n
|
=1
|
n
|
=5
|
n
|
5
|
+
|
3
|
:
|
2
|
=4
|
+
|
n
|
×
|
n
|
+
|
n
|
4
|
×
|
2
|
-
|
7
|
=1
|
-
|
n
|
-
|
n
|
-
|
n
|
7
|
-
|
5
|
×
|
4
|
=8
|
=2
|
n
|
=1
|
n
|
=5
|
n
|