1000 
1000
400
100
+4
2
2
1000
1000
400
100
+77
1
1
1000
1000
400
100
+182
1000
1000
400
100
+510
1000
1000
400
100
+193
1000
1000
400
100
+86
1000
1000
400
100
+114
| 1 | 2 |