1000 
1000
400
100
+100
2
1000
1000
400
100
+64
4
1000
1000
400
100
+52
1000
1000
400
100
+19
1000
1000
400
100
+46
1
1000
1000
400
100
+33
1000
1000
400
100
+16
1000
1000
400
100
+37
