1000 
1000
400
100
+102
2
1000
1000
400
100
+31
3
1000
1000
400
100
+54
1000
1000
400
100
+16
1000
1000
400
100
+40
1000
1000
400
100
+104
1000
1000
400
100
+96
1
2
1000
1000
400
100
+211