1000 
1000
400
100
+147
3
1
1000
1000
400
100
+151
1
1000
1000
400
100
+107
1000
1000
400
100
+22
1000
1000
400
100
+171
1000
1000
400
100
+119
1
1000
1000
400
100
+71
1000
1000
400
100
+188
| 1 | 2 |
