crossover
4
4
1000 
1000
400
100
+110
1000
1000
400
100
+40
1
1
1000
1000
400
100
+86
1
1000
1000
400
100
+55
1000
1000
400
100
+11
1000
1000
400
100
+13
1000
1000
400
100
+23
1000
1000
400
100
+17