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Dòng đầu tiên: In ra chi phí nhỏ nhất để đi từ trại tới điểm đào vàng xa nhất. Nếu không thể tiếp cận tất cả các mỏ vàng, in ra -1

Nếu có bất kỳ mỏ vàng nào không thể tiếp cận, bạn nên in ra vị trí của chúng trên mỗi dòng theo thứ tự đã nhập vào. Bạn nên đặt vị trí trại sao cho Hugo có thể tiếp cận được nhiều mỏ vàng nhất có thể. Ưu tiên các mỏ vàng xuất hiện trước theo thứ tự nhập.

Case #1

1

Case #2

2

Case #3

2

Case #11

1

4 3

4 5

6 10

Case #48

-1

Case #49

11

50
5 2
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3 4
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1 1 0 0 0 0 1 0 1 1 1 1 1 0 1 0 0 1 0 0 
0 1 1 1 1 0 1 1 1 1 0 1 1 1 1 0 1 0 0 1 
1 1 0 1 1 0 1 0 0 1 1 1 1 0 1 1 1 0 0 1 
0 1 1 0 0 1 0 1 1 0 1 0 1 0 1 1 1 0 0 1 
0 1 1 1 1 1 1 1 0 1 1 1 0 1 1 1 0 1 0 1 
1 1 1 1 1 0 1 0 1 1 0 0 0 1 1 1 1 1 1 0 
0 1 0 1 1 1 0 0 0 1 1 1 1 0 0 1 0 1 0 1 
0 1 1 1 0 1 1 1 1 1 0 1 1 1 0 1 0 1 1 0 
0 1 0 0 1 1 0 0 0 1 1 1 1 1 0 1 0 1 0 0 
1 0 1 1 1 1 1 0 0 1 0 1 1 1 1 0 1 0 1 1 
20 2
18 14
8 13
0 0 0 0 1 1 0 0 0 1 1 0 0 1 1 1 1 1 0 1 
0 1 1 0 1 1 1 1 1 1 1 0 1 0 0 1 1 1 1 1 
0 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 0 1 1 
1 1 0 1 0 1 0 1 1 1 1 1 1 0 1 0 0 1 0 1 
1 1 0 0 1 0 1 1 1 1 1 0 0 0 0 0 1 0 1 0 
1 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1 0 1 0 1 
1 0 1 1 1 0 1 0 1 1 1 0 1 1 1 0 0 1 0 0 
1 1 1 1 0 0 1 1 1 1 1 1 1 1 1 1 1 0 1 0 
1 0 0 1 1 1 1 1 1 0 0 1 0 0 1 1 0 0 1 1 
1 1 1 1 1 1 1 0 1 0 1 0 1 1 1 0 1 0 1 1 
1 1 1 1 1 0 0 1 0 1 1 0 1 0 0 0 1 0 1 1 
0 0 1 1 0 1 1 1 1 1 0 0 0 1 0 1 1 0 1 1 
0 0 1 0 0 1 1 1 1 0 0 1 1 0 1 1 1 0 0 0 
0 1 0 1 0 0 0 1 0 1 1 1 1 1 1 0 1 0 0 0 
0 0 0 1 0 1 1 0 0 1 0 0 1 1 1 1 1 1 1 1 
0 1 1 0 1 1 1 0 1 1 1 1 0 1 1 1 1 0 0 1 
1 1 0 1 1 0 1 1 0 0 1 1 1 1 0 0 1 1 1 1 
1 1 1 1 1 1 1 1 1 1 1 1 0 1 0 1 1 1 1 0 
1 1 1 1 0 0 1 1 1 0 1 1 1 0 1 0 1 0 0 0 
1 1 1 1 0 1 0 1 0 0 1 1 1 1 0 1 1 1 0 0 
20 2
6 16
16 6
1 1 1 1 1 0 1 1 1 1 1 0 1 0 1 0 1 1 1 0 
1 1 0 1 1 0 0 0 1 1 1 1 1 0 1 0 1 1 1 0 
1 1 1 0 1 0 0 1 1 0 1 1 1 1 1 0 0 0 1 1 
1 1 1 1 1 1 0 0 0 1 1 1 1 0 1 0 1 0 1 1 
1 1 1 0 1 1 1 1 1 0 1 1 0 0 1 0 0 1 1 1 
0 1 0 0 0 1 1 1 1 1 1 1 1 1 0 1 0 0 0 1 
1 0 1 0 0 1 1 1 1 0 1 1 1 1 0 1 1 1 1 0 
0 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 
1 1 1 0 1 1 1 0 0 1 1 0 1 1 1 0 1 1 0 1 
1 1 1 1 1 1 0 0 1 1 1 1 1 1 1 1 1 1 1 1 
1 0 1 0 0 1 1 0 1 1 0 1 0 0 0 0 1 1 1 0 
1 1 1 1 1 1 0 1 0 0 1 1 1 1 1 0 0 1 1 1 
1 1 0 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 0 1 
1 1 1 0 1 0 1 1 0 0 1 0 1 0 0 1 1 0 0 1 
0 1 1 0 1 0 1 0 1 1 1 0 0 1 1 1 0 1 1 0 
0 1 0 0 1 1 1 1 0 0 1 1 1 0 0 0 0 0 1 0 
1 1 1 1 0 1 1 1 1 1 1 1 0 0 1 1 1 0 1 1 
1 1 0 1 1 1 1 1 0 1 0 1 0 0 1 1 1 1 0 1 
1 1 1 0 1 0 1 0 1 0 0 1 1 1 0 1 1 1 0 1 
1 0 1 0 1 1 1 1 0 1 1 1 0 0 1 0 1 1 1 1 
20 4
20 13
15 16
13 9
3 9
0 1 1 1 1 0 1 1 1 0 1 1 0 1 1 1 1 1 0 1 
1 0 1 1 0 1 1 0 1 1 1 1 1 1 1 1 1 1 0 1 
0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 0 1 1 1 1 
1 1 0 1 0 1 1 1 1 1 0 1 0 1 1 1 1 1 0 1 
1 1 1 1 0 0 1 1 1 1 0 1 1 0 1 0 0 1 1 1 
1 1 1 1 1 0 1 0 0 1 1 0 1 1 1 1 1 0 1 0 
1 0 1 1 1 0 0 0 1 1 0 1 0 0 1 0 0 0 1 0 
1 1 0 1 1 1 1 0 1 1 1 1 1 1 0 0 1 0 1 0 
1 1 1 1 1 1 1 0 0 1 0 1 1 1 1 1 1 0 1 1 
1 0 1 1 1 1 1 1 0 0 0 1 1 0 0 0 1 1 1 0 
0 1 1 1 1 0 1 0 1 0 1 1 1 1 1 0 1 1 0 1 
0 1 0 0 1 0 1 0 1 1 1 1 1 0 1 0 1 1 1 1 
0 0 1 1 0 1 1 1 1 1 1 1 1 0 1 1 1 0 1 1 
0 1 1 1 0 0 0 1 0 0 1 1 1 1 1 1 1 1 0 0 
1 0 1 1 0 0 1 0 1 1 1 0 1 0 0 1 1 1 1 1 
0 1 0 1 0 0 1 1 0 1 1 1 1 1 1 0 0 1 1 1 
0 1 0 1 1 0 1 1 0 1 0 0 1 0 1 0 1 0 1 1 
0 0 0 0 1 0 1 1 1 1 0 1 1 0 1 1 1 0 1 0 
1 1 1 1 1 1 1 0 1 0 0 1 0 1 1 1 1 1 0 1 
0 0 1 1 0 0 1 1 1 1 1 0 1 0 1 1 1 0 0 1 
20 3
18 2
18 11
11 16
1 1 1 0 1 1 1 1 1 0 0 1 1 1 1 0 1 1 0 1 
0 0 0 1 0 1 0 0 1 1 0 1 1 0 1 1 1 1 0 1 
1 0 1 1 1 1 1 0 1 0 0 0 0 0 1 1 1 1 0 1 
0 1 0 1 1 1 1 1 1 0 1 0 1 0 1 0 1 0 0 0 
1 1 1 1 1 1 0 1 0 0 1 0 0 0 1 1 0 1 0 1 
1 0 0 1 0 1 1 1 0 0 1 0 1 1 1 1 1 1 1 0 
1 1 0 0 1 0 1 1 0 1 1 0 1 1 1 1 1 0 1 0 
0 0 1 0 1 0 0 0 1 1 1 1 0 1 0 1 1 1 1 1 
0 1 0 0 1 1 1 0 0 0 1 1 1 1 1 1 1 0 1 0 
1 1 1 0 0 1 0 1 1 1 0 1 1 1 0 1 0 1 1 1 
1 1 1 1 1 0 1 1 1 0 0 1 1 1 0 1 1 0 1 1 
0 1 1 1 0 1 1 1 1 0 0 0 1 1 0 0 1 0 1 1 
0 1 1 0 0 0 1 1 1 1 1 1 1 0 1 1 0 1 1 0 
0 0 0 0 1 1 1 1 0 0 1 0 1 0 0 1 0 1 0 0 
1 0 1 1 0 1 0 1 0 1 1 0 1 1 1 0 0 1 1 0 
1 0 1 1 1 1 1 0 1 1 0 1 1 0 0 0 1 1 1 1 
0 0 1 1 0 0 0 1 0 1 1 1 1 1 0 1 1 1 0 1 
0 1 0 0 1 0 0 1 0 1 1 1 1 1 1 1 1 1 1 0 
1 1 0 1 1 1 0 0 1 1 0 0 1 1 0 0 0 1 1 1 
0 1 1 1 1 1 1 1 0 1 0 1 1 0 0 0 1 1 1 1 
20 3
8 4
5 10
9 14
1 1 0 1 0 1 1 1 1 1 1 0 0 1 1 0 0 1 1 1 
0 1 0 1 1 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 
1 1 0 1 1 1 0 0 1 0 1 0 1 1 1 1 1 1 0 1 
0 1 0 1 1 0 0 1 1 1 0 1 1 0 1 1 0 1 0 0 
1 1 0 1 0 1 1 1 1 1 1 1 0 1 1 1 1 1 1 0 
1 0 1 1 1 0 1 1 1 1 0 1 0 1 0 1 1 1 1 0 
0 1 0 0 0 1 1 1 1 1 1 0 0 1 0 0 1 1 1 0 
1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 1 1 0 1 
0 1 1 0 0 1 0 0 1 1 1 1 1 1 1 1 1 0 0 0 
0 0 0 1 0 1 0 1 1 1 1 1 1 0 0 1 1 1 1 1 
1 1 1 1 0 0 0 1 1 1 0 1 1 0 1 1 1 1 1 1 
0 1 1 0 1 1 1 0 1 1 0 0 1 1 1 0 0 1 0 0 
1 0 1 1 1 1 1 0 1 1 0 0 1 1 1 1 1 0 0 1 
1 1 1 0 1 1 0 0 1 1 1 0 1 0 1 1 0 1 0 1 
1 0 1 1 0 0 1 1 0 1 1 0 0 0 1 1 1 0 1 1 
0 0 1 1 0 1 1 1 1 0 1 1 1 0 0 1 0 1 0 1 
1 1 0 1 1 1 1 1 0 1 1 1 1 1 1 1 0 1 1 1 
1 1 1 0 1 1 1 1 1 1 0 1 1 1 0 1 1 0 1 1 
0 1 0 1 0 1 0 1 0 1 0 1 1 0 1 0 1 1 1 1 
0 1 0 0 0 1 1 1 1 1 1 0 1 1 0 1 1 1 1 1 
20 2
9 4
1 10
1 0 1 0 1 1 0 0 0 1 0 1 0 0 1 1 1 1 1 0 
1 1 1 1 1 1 1 1 1 0 0 1 0 1 0 1 1 1 1 1 
1 1 1 0 1 1 1 1 1 1 1 0 1 1 1 1 0 1 0 1 
1 1 0 1 0 1 1 1 1 1 0 1 0 0 1 1 0 0 0 1 
1 1 1 0 1 1 1 0 0 1 1 0 1 1 1 1 1 1 1 0 
1 1 1 0 0 1 1 0 1 1 1 1 1 1 1 0 1 1 1 1 
1 1 1 1 1 0 0 0 1 1 0 0 1 1 1 1 1 0 1 0 
0 1 1 0 1 1 0 0 1 1 1 0 1 0 0 1 1 0 1 1 
1 0 0 1 0 1 0 0 1 0 1 1 1 1 1 1 1 0 1 0 
1 1 1 0 1 1 1 1 1 1 0 0 0 1 1 0 1 1 1 1 
1 1 1 1 1 1 0 1 0 1 1 1 1 1 1 0 1 1 1 1 
0 0 0 1 0 0 1 1 1 0 0 0 0 0 1 0 0 1 1 0 
1 1 0 1 1 1 1 0 0 0 1 1 1 1 0 1 1 1 1 0 
1 1 0 1 1 0 1 1 1 1 0 0 1 1 1 1 1 1 1 0 
1 1 0 0 0 1 0 0 1 1 1 0 0 1 0 1 1 0 1 0 
1 1 1 1 1 1 0 0 0 1 1 1 1 1 1 1 1 1 1 1 
1 0 1 1 0 1 1 1 1 0 1 1 1 0 0 0 0 0 0 1 
1 1 0 1 1 1 1 1 1 1 1 1 1 0 1 0 1 0 1 1 
1 1 1 0 1 1 0 0 1 1 1 1 1 1 1 1 1 0 1 1 
0 1 0 0 1 0 1 1 0 1 1 1 0 0 0 0 0 0 1 0 
20 4
2 10
12 6
8 17
1 3
1 0 1 1 1 0 0 1 0 1 1 0 0 0 0 0 1 1 1 0 
0 0 0 0 1 1 1 1 0 1 1 1 0 1 1 0 1 1 0 1 
0 0 1 1 1 1 1 1 0 0 1 1 1 1 1 1 0 1 1 0 
1 1 1 1 0 1 1 1 1 0 1 0 1 0 1 0 1 0 1 0 
0 1 1 1 1 1 1 1 1 0 1 1 0 1 1 1 1 0 1 1 
1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
0 1 0 1 0 1 1 1 1 1 1 0 0 1 1 0 1 1 1 1 
1 1 0 1 1 1 1 1 1 0 1 1 0 0 1 1 1 0 1 1 
1 0 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 
1 1 0 1 0 0 1 0 1 0 1 1 0 0 1 1 1 0 1 1 
1 1 1 1 1 1 1 1 0 1 1 1 0 1 1 1 0 0 1 0 
1 0 1 0 1 1 1 0 1 0 1 1 1 0 1 1 1 1 0 0 
0 1 0 1 0 1 1 0 1 0 0 0 1 0 1 0 1 0 1 1 
1 1 1 0 1 1 1 1 1 1 0 0 0 1 1 0 1 1 1 1 
1 1 1 0 1 1 1 1 0 1 0 1 1 1 1 0 0 1 0 1 
1 0 1 0 1 1 1 1 1 1 1 0 0 1 0 1 0 1 1 0 
1 0 0 0 1 1 1 1 0 0 1 1 1 0 1 1 1 1 0 1 
1 1 1 1 0 1 1 1 1 0 1 1 1 0 0 1 1 0 0 1 
1 1 1 0 1 1 1 1 1 0 0 1 0 0 1 0 0 1 1 1 
1 1 1 1 1 0 1 0 1 1 0 1 0 1 1 0 1 1 1 1 
20 2
17 2
20 20
0 0 1 0 1 0 0 1 0 1 1 1 1 1 1 0 1 1 0 1 
1 0 1 1 0 1 0 1 1 0 1 1 1 0 1 1 0 1 0 1 
0 1 1 1 1 0 1 1 0 1 0 0 0 1 0 0 1 1 1 0 
1 1 1 1 0 1 1 0 1 1 1 1 1 1 1 1 1 1 1 0 
0 0 1 1 0 1 1 1 0 0 1 1 1 1 1 0 0 1 1 1 
1 0 0 1 0 1 0 0 1 0 1 0 0 1 1 1 1 0 0 1 
1 1 1 1 1 1 0 1 1 1 1 1 0 0 1 1 0 1 0 1 
1 1 1 0 0 1 0 1 1 1 1 1 1 1 0 1 1 0 0 1 
1 0 1 0 1 0 0 1 0 0 1 0 1 1 1 1 1 1 0 0 
1 1 0 0 0 1 1 1 1 1 1 0 1 0 1 0 0 0 1 1 
1 1 1 1 0 1 0 1 1 1 1 1 1 0 1 1 1 0 1 0 
0 0 0 0 1 1 1 0 1 1 1 1 1 1 1 1 0 0 1 1 
1 1 0 0 1 1 1 1 0 1 1 0 0 1 0 1 1 1 0 0 
0 0 1 1 1 1 1 0 1 1 0 1 1 0 1 0 0 1 1 0 
1 1 0 1 1 1 1 0 1 0 1 1 1 1 1 0 0 0 1 0 
1 0 1 0 1 0 1 1 1 1 0 1 1 1 0 0 0 1 1 0 
0 1 0 0 0 0 1 1 1 1 1 0 1 1 0 0 1 1 0 0 
0 0 1 1 1 1 1 1 0 1 1 1 1 0 1 1 1 1 0 0 
0 1 1 1 1 1 0 1 1 0 0 0 1 0 1 0 1 1 0 0 
0 0 0 1 1 0 0 1 1 0 0 0 0 0 1 0 1 1 1 1

output
Case #1
1
Case #2
2
Case #3
2
Case #4
7
Case #5
3
1 9
Case #6
8
Case #7
2
Case #8
4
Case #9
6
Case #10
1
8 4
Case #11
1
4 3
4 5
6 10
Case #12
1
Case #13
4
6 8
Case #14
6
3 9
Case #15
1
1 7
9 10
7 2
Case #16
1
3 6
Case #17
8
Case #18
1
10 10
Case #19
3
6 8
Case #20
7
Case #21
7
Case #22
2
Case #23
10
Case #24
9
Case #25
2
11 10
10 10
Case #26
6
Case #27
1
2 11
Case #28
1
9 8
Case #29
8
Case #30
3
Case #31
5
Case #32
10
Case #33
12
Case #34
12
Case #35
5
2 2
Case #36
13
Case #37
12
6 10
4 15
Case #38
8
Case #39
3
Case #40
11
Case #41
1
5 14
Case #42
8
Case #43
1
18 14
Case #44
10
Case #45
10
20 13
Case #46
8
18 2
Case #47
7
Case #48
-1
Case #49
11
Case #50
1
17 2