1000 
1000
400
100
+18
1
1
1000
1000
400
100
+415
1000
1000
400
100
+86
1000
1000
400
100
+35
2
1000
1000
400
100
+198
1000
1000
400
100
+68
1000
1000
400
100
+99
1000
1000
400
100
+169