21:37
2
2
1000 
1000
400
100
+23
1
1000
1000
400
100
+134
1
1000
1000
400
100
+64
1000
1000
400
100
+14
1000
1000
400
100
+29
1000
1000
400
100
+86
1000
1000
400
100
+42
1000
1000
400
100
+17
