1000 
1000
400
100
+180
1000
1000
400
100
+119
2
1000
1000
400
100
+52
1000
1000
400
100
+184
1000
1000
400
100
+195
1000
1000
400
100
+142
1000
1000
400
100
+45
| 1 | 2 |