1000 
1000
400
100
+50
4
1000
1000
400
100
+63
3
18
3
1000
1000
400
100
+37
1000
1000
400
100
+86
1000
1000
400
100
+67
1000
1000
400
100
+81
1000
1000
400
100
+61