1000 
1000
400
100
+31
1000
1000
400
100
+91
1000
1000
400
100
+2
1000
1000
400
100
+1
1000
1000
400
100
+1
1000
1000
400
100
+2
1000
1000
400
100
+1
1000
1000
400
100
+3