Life hack
1 r
2
1000 
1000
400
100
+72
1
1
1000
1000
400
100
+99
1
1000
1000
400
100
+74
1000
1000
400
100
+127
1000
1000
400
100
+100
1000
1000
400
100
+22
1000
1000
400
100
+109
