2
4
-1
3
5
-3
-2
-6
2
-9
9
-8
0
1
-6
-4
8
4
3
-2
-7
1
0
-1
-8
-8
7
-2
-7
9
0
-5
6
0
-1
0
2
-9
2
-7
5
2
6
1
-3
8
-7
-6
-7
-7
2
8
-2
-1
-3
-7
6
-3
0
0
-8
-1
6
-4
7
6
1
0
-7
0
2
0
-2
7
4
8
7
-3
0
0
0
1
3
-7
7
-4
8
-4
3
5
-8
-2
7
-2
-2
1
-2
-6
8
8
6
-9
0
9
-5
-2
2
-2
-2
2
0
-2
-8
0
8
-5
6
-1
-9
-5
8
0
-6
3
2
0
0
-9