Prolog
2
1
2
1
1000 
1000
400
100
+54
26
6
1000
1000
400
100
+89
1000
1000
400
100
+32
1000
1000
400
100
+57
1000
1000
400
100
+105
1000
1000
400
100
+123
1000
1000
400
100
+39