1000 
1000
400
100
+12
1
1
2
1000
1000
400
100
+34
1000
1000
400
100
+56
1
1000
1000
400
100
+14
1000
1000
400
100
+111
1000
1000
400
100
+19
1000
1000
400
100
+12
1000
1000
400
100
+114
| 1 | 2 |