1000 
1000
400
100
+34
2
1000
1000
400
100
+148
1
1000
1000
400
100
+129
1000
1000
400
100
+108
1
1000
1000
400
100
+40
2
1000
1000
400
100
+81
1000
1000
400
100
+34