Happy day
12
1000 
1000
400
100
+105
1
1000
1000
400
100
+101
1
1000
1000
400
100
+56
1000
1000
400
100
+23
1000
1000
400
100
+64
1000
1000
400
100
+105
1000
1000
400
100
+32
1000
1000
400
100
+50
