1000 
1000
400
100
+134
2
1
1000
1000
400
100
+75
1000
1000
400
100
+24
1000
1000
400
100
+70
1000
1000
400
100
+131
1000
1000
400
100
+58
1000
1000
400
100
+83
| 1 | 2 |