⠀⠀⠀⠀
4
4
1 r
12
1000 
1000
400
100
+66
1000
1000
400
100
+109
1
1000
1000
400
100
+51
1000
1000
400
100
+53
1000
1000
400
100
+93
1000
1000
400
100
+33
1000
1000
400
100
+124
1
1
1000
1000
400
100
+482