Finally
4 l
6
1000 
1000
400
100
+85
1000
1000
400
100
+136
1000
1000
400
100
+167
1000
1000
400
100
+81
1000
1000
400
100
+50
1000
1000
400
100
+51
1000
1000
400
100
+148
1000
1000
400
100
+172