1000 
1000
400
100
+40
1000
1000
400
100
+14
3
1
2
1000
1000
400
100
+23
1000
1000
400
100
+13
1000
1000
400
100
+36
1000
1000
400
100
+20
1000
1000
400
100
+7
1000
1000
400
100
+34