1000 
1000
400
100
+182
1
1
1000
1000
400
100
+87
1
1000
1000
400
100
+168
1000
1000
400
100
+6
1
1000
1000
400
100
+6
1000
1000
400
100
+108
1000
1000
400
100
+107