boys
1
1
1000 
1000
400
100
+133
1
1000
1000
400
100
+127
2
1000
1000
400
100
+55
1000
1000
400
100
+139
1000
1000
400
100
+115
1000
1000
400
100
+46
1000
1000
400
100
+167