제출 #81085

4
1 7 4 7

7 0 7 -1 

7 -1 7 -1 

4
3 9 4 6

6 0 6 -1 

9 -1 6 -1 

5
6 6 6 8 10

6 6 8 10 -1 

8 8 8 10 -1