1000 
1000
400
100
+2
1000
1000
400
100
+11
1000
1000
400
100
+90
1000
1000
400
100
+39
1000
1000
400
100
+121
2
1000
1000
400
100
+59
25
1
1000
1000
400
100
+41
| 1 | 2 |