1000 
1000
400
100
+100
2
1
1000
1000
400
100
+129
1000
1000
400
100
+66
1000
1000
400
100
+41
7
1
1000
1000
400
100
+59
1000
1000
400
100
+121
1000
1000
400
100
+89
1000
1000
400
100
+138