1000 
1000
400
100
+56
2
23
4
9
1000
1000
400
100
+26
1000
1000
400
100
+373
1000
1000
400
100
+101
1000
1000
400
100
+45
1000
1000
400
100
+84
1000
1000
400
100
+66
| 1 | 2 |