1000 
1000
400
100
+164
2
2
1
1000
1000
400
100
+104
1000
1000
400
100
+47
1
1000
1000
400
100
+69
1000
1000
400
100
+3
1000
1000
400
100
+45
1000
1000
400
100
+54
1000
1000
400
100
+73