Aha...
2 l
20
1000 
1000
400
100
+258
1
16
4
10
1000
1000
400
100
+127
1000
1000
400
100
+235
1000
1000
400
100
+149
1000
1000
400
100
+161
1000
1000
400
100
+104
1000
1000
400
100
+350