1000 
1000
400
100
+67
1000
1000
400
100
+50
1
1000
1000
400
100
+168
1000
1000
400
100
+49
1000
1000
400
100
+122
1
1000
1000
400
100
+88
2
1000
1000
400
100
+73
1
1000
1000
400
100
+146
| 1 | 2 |