:) (:
1
1
2
1
1
2
1000 
1000
400
100
+9
2
1000
1000
400
100
+3
1000
1000
400
100
+76
1000
1000
400
100
+7
1000
1000
400
100
+138
1000
1000
400
100
+13
1000
1000
400
100
+9
1000
1000
400
100
+3