1000 
1000
400
100
+116
1000
1000
400
100
+93
2
1000
1000
400
100
+120
1000
1000
400
100
+143
1000
1000
400
100
+167
1
1000
1000
400
100
+124
1000
1000
400
100
+92
| 1 | 2 |