1000 
1000
400
100
+138
1
2
1
1000
1000
400
100
+64
1000
1000
400
100
+46
1000
1000
400
100
+7
1
1000
1000
400
100
+88
1000
1000
400
100
+59
1000
1000
400
100
+169
