1000 
1000
400
100
+80
3
1
1000
1000
400
100
+224
1
1000
1000
400
100
+104
1000
1000
400
100
+257
1000
1000
400
100
+36
1000
1000
400
100
+64
1000
1000
400
100
+0
1000
1000
400
100
+0
| 1 | 2 |