1000 
1000
400
100
+40
1
1000
1000
400
100
+128
4
2
1000
1000
400
100
+24
1000
1000
400
100
+66
1000
1000
400
100
+44
1000
1000
400
100
+193
2
1000
1000
400
100
+346
