Plan B
1
1
8
1000 
1000
400
100
+66
1000
1000
400
100
+56
1
1
1000
1000
400
100
+68
1000
1000
400
100
+92
1000
1000
400
100
+124
1000
1000
400
100
+151
1000
1000
400
100
+94