1000 
1000
400
100
+60
2
1000
1000
400
100
+77
2
1000
1000
400
100
+41
1
1000
1000
400
100
+214
1000
1000
400
100
+177
1000
1000
400
100
+96
1000
1000
400
100
+244
1000
1000
400
100
+121
| 1 | 2 |