Timbom

Level 3
Laughing Bomb
You are busy to promote a newly released film in a movie theater. The title is ‘Biochemical Laughing Bomb’ which is about terror.
Guerrillas drop a biochemical laughing bomb in the middle of a city. Once exposed, you have to laugh all your life. The bomb will contaminate four people around it during 1 second, and another four around each of them during another one second. However, you won’t be contaminated if you are not in the adjacent four directions. as the below shows the location of the bomb and affected people, and shows contamination process in seconds and you can figure out that the whole city is contaminated in 8 seconds.
In order to protect the city from the epidemic, create a program that figures out when the city will be contaminated by the bomb for the last.












Time limit: 1 second (java: 2 seconds)

[Input]
Several test cases can be included in the inputs. T, the number of cases is given in the first row of the inputs. After that, the test cases as many as T (T ≤ 30) are given in a row.
The row and column of the city, N and M are given by being separated with a blank on the first row of each test case. (1 ≤ N, M ≤ 100)
The status within city is given by being separated with a blank from the second row to N number rows. 1 means people exist and 0 means people do not exist.
The coordinate of the row and column on which the bomb fall is given by being separated with a blank on the last row.

[Output]
Output how long does it take to contaminate al people on the first row of each test case.

[I/O Example]

Input
2
7 8
0 0 1 1 0 0 0
1 1 1 1 0 1 0
0 0 1 1 1 1 1
0 1 1 1 1 1 1
0 1 0 0 1 1 0
0 1 1 1 1 0 0
0 0 1 0 1 1 1
0 0 0 0 1 0 0
2 5
10 10
1 1 1 1 0 1 1 0 0 0
0 1 1 1 1 1 0 1 1 0
0 0 1 1 0 1 0 1 1 1
0 1 1 1 1 1 0 0 1 1
0 1 0 1 0 1 1 1 1 0
0 0 0 0 0 1 1 0 0 0
1 0 1 0 1 0 1 1 0 0
0 0 1 1 1 1 1 1 1 1
1 0 1 0 0 1 0 1 1 0
1 1 1 0 0 0 0 1 1 1
2 2

Output
8
21

21
23
56
51
20
156
15
164
122
116

10
10 10
1 1 1 1 0 1 1 0 0 0
0 1 1 1 1 1 0 1 1 0
0 0 1 1 0 1 0 1 1 1
0 1 1 1 1 1 0 0 1 1
0 1 0 1 0 1 1 1 1 0
0 0 0 0 0 1 1 0 0 0
1 0 1 0 1 0 1 1 0 0
0 0 1 1 1 1 1 1 1 1
1 0 1 0 0 1 0 1 1 0
1 1 1 0 0 0 0 1 1 1
2 2
15 10
0 0 0 0 0 1 0 0 1 1 0 1 0 1 0
1 0 1 0 0 1 1 0 0 1 0 1 0 1 0
1 1 1 1 1 0 1 1 0 1 0 1 0 1 1
0 0 1 0 1 1 1 1 1 1 0 1 0 0 1
0 1 1 1 1 0 0 0 1 1 1 1 0 1 1
0 1 0 0 1 1 1 1 1 1 0 1 1 1 1
0 1 0 1 1 1 0 1 0 0 0 0 0 0 1
1 1 0 1 1 1 1 1 1 1 0 1 1 1 1
0 1 0 1 0 1 0 0 0 1 1 1 0 0 1
0 0 0 1 0 1 1 0 1 1 0 0 0 0 0
2 3
30 40
1 1 1 1 0 1 1 1 0 1 0 0 0 1 0 1 1 1 0 0 0 1 1 1 1 0 1 0 1 0
0 0 1 0 0 0 1 0 1 1 0 1 0 1 1 0 1 1 0 1 0 0 0 1 0 0 1 1 1 1
1 0 1 1 1 1 1 1 0 1 1 1 0 0 1 0 1 1 0 1 0 0 1 1 1 0 1 1 1 1
0 0 1 1 1 0 1 0 0 0 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 0 0 0
0 0 1 1 1 0 1 0 0 1 1 0 0 1 1 0 0 1 0 1 1 1 0 1 0 1 1 0 0 0
0 1 0 1 1 1 1 1 1 1 0 0 1 0 1 1 1 1 0 1 1 0 0 1 0 0 1 0 0 1
1 1 1 1 1 1 0 0 0 0 1 0 0 1 1 0 1 0 0 0 1 1 0 1 1 1 1 1 1 1
0 0 1 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 1 1
1 1 1 1 1 1 0 0 0 0 0 0 1 0 1 0 1 1 0 1 0 1 1 0 1 0 1 0 1 1
0 1 1 0 0 1 1 1 0 0 1 0 1 1 1 0 0 0 1 0 0 1 0 0 1 1 0 0 0 1
1 1 0 1 1 1 0 1 0 0 1 0 1 1 0 1 1 1 1 0 1 1 1 0 1 0 0 0 0 1
1 1 1 1 1 0 0 1 1 1 1 1 1 0 1 0 1 0 1 0 0 0 1 1 1 1 0 0 1 1
0 1 0 0 0 1 1 1 0 0 0 0 1 1 1 1 1 0 0 1 0 1 1 0 0 1 1 0 0 1
0 1 1 0 0 1 1 1 0 1 0 0 1 1 0 0 1 1 0 1 1 1 0 1 1 0 1 1 1 1
1 1 0 1 0 0 1 0 1 0 1 1 0 0 0 1 0 1 1 1 0 1 0 1 0 0 0 0 1 1
1 1 0 1 1 1 0 1 0 0 0 1 1 1 1 1 1 0 0 0 0 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 0 0 0 1 1 1 1 0 0 1 1 1 0 1 1 0 1 1 0 0 1 0 0 1
0 0 0 1 1 1 0 1 1 0 0 1 1 1 0 0 0 1 0 0 1 0 1 0 0 0 0 0 0 1
0 0 0 1 0 1 1 1 0 1 1 0 1 0 0 1 0 1 0 0 1 1 1 1 1 0 1 1 1 1
0 0 1 1 1 0 0 0 0 1 0 1 0 0 0 0 0 1 1 0 0 1 1 1 0 0 0 1 0 0
1 1 1 0 0 1 0 0 0 0 0 1 0 0 1 0 0 1 1 1 1 1 1 0 0 1 1 1 1 0
0 0 1 1 1 0 1 0 1 1 0 1 0 0 0 1 0 1 0 1 1 1 0 0 0 1 0 0 1 1
1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 1 1 1 1 1 0
0 1 1 1 0 1 0 0 0 0 0 1 0 1 0 0 1 0 1 0 1 1 0 1 1 1 0 1 1 0
0 0 0 0 0 0 1 1 1 0 0 1 1 0 1 1 0 1 0 1 1 0 0 0 1 1 0 0 1 1
0 0 1 1 1 0 1 1 1 0 1 0 0 0 1 1 0 1 0 0 1 1 0 1 1 0 1 0 0 1
1 1 0 1 0 1 1 0 1 1 0 0 1 0 0 1 1 0 1 0 0 0 1 0 1 1 0 1 1 1
0 0 0 1 1 0 0 1 1 1 0 0 0 0 1 1 0 1 0 0 0 0 1 1 0 0 1 0 1 1
0 0 0 0 1 0 1 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 1 0 0 0 1 0 1 0
0 1 1 0 0 0 1 1 0 1 1 0 0 1 1 1 1 1 0 1 0 0 0 0 0 0 0 1 0 0
0 1 0 1 1 0 1 0 1 1 0 1 0 1 0 0 1 0 0 0 0 1 0 0 1 0 1 0 0 1
1 0 0 1 0 1 1 0 1 0 0 0 0 0 1 0 0 0 0 0 1 1 0 0 1 0 0 1 1 1
1 1 0 1 0 1 0 0 0 0 1 0 0 0 0 1 1 0 0 1 1 1 0 0 1 1 1 1 0 1
0 1 0 1 1 0 0 0 1 0 1 0 1 1 0 1 0 1 1 0 0 1 1 1 1 1 0 1 1 1
0 0 0 0 0 0 0 1 0 1 1 0 0 0 0 1 1 1 0 1 0 1 0 1 1 0 0 1 0 1
0 0 1 0 1 1 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 1 0
0 1 0 1 0 0 1 1 0 0 0 1 0 1 0 0 0 0 1 1 1 0 0 1 1 0 1 0 0 1
0 0 0 1 1 0 0 0 0 1 1 1 0 0 1 1 1 1 1 0 1 1 0 1 0 1 1 1 1 0
0 1 1 0 1 1 1 0 1 1 0 1 0 0 1 0 0 1 0 1 0 0 0 0 1 1 0 1 0 1
0 1 1 0 1 1 0 1 0 1 0 0 0 1 0 1 0 0 0 0 1 0 1 0 1 0 0 1 0 0
5 5
50 50
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0
0 1 1 0 1 0 1 0 0 0 1 1 1 1 1 0 0 1 0 0 1 1 1 0 1 0 1 0 1 1 1 1 0 1 0 0 0 1 1 1 1 0 1 1 0 1 0 1 1 1
0 1 0 0 1 1 1 0 0 0 1 0 0 0 1 1 1 1 1 0 1 1 0 0 1 0 1 1 0 1 1 1 0 1 1 0 1 0 1 1 1 0 0 1 0 1 1 1 1 1
0 0 0 0 1 1 0 1 1 0 1 0 0 0 0 0 0 0 1 0 1 1 0 1 1 1 0 0 1 1 0 0 1 1 1 0 1 0 1 1 0 1 0 1 0 1 0 0 0 1
1 0 1 0 1 1 1 0 0 0 1 0 1 1 1 0 0 1 1 0 0 0 0 1 0 0 1 1 0 1 1 0 1 0 0 1 1 0 0 0 1 0 1 1 1 1 0 0 1 0
1 0 1 1 1 0 1 0 0 1 1 0 1 0 1 1 0 0 0 0 1 1 1 0 1 0 0 0 0 1 1 1 1 1 0 1 1 1 0 0 1 1 0 1 1 1 0 1 1 0
0 1 1 0 1 1 1 0 1 1 1 1 1 0 0 0 1 1 1 1 1 0 0 0 1 0 1 0 1 1 1 0 1 0 0 1 0 1 0 0 1 0 1 0 1 1 0 1 0 0
0 1 1 0 1 1 0 1 0 0 1 0 1 1 0 0 0 0 0 0 1 1 0 1 1 0 0 0 1 1 0 0 0 0 1 0 1 1 0 0 0 0 1 1 0 0 1 1 0 1
0 0 1 1 1 0 0 1 1 1 1 0 0 0 1 1 1 0 0 1 1 1 1 1 1 1 0 0 1 1 0 1 0 1 0 0 0 1 1 0 0 0 1 1 1 0 0 1 0 0
1 0 1 0 1 0 1 0 1 0 1 1 0 0 1 0 0 0 1 0 0 0 0 0 1 0 1 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 0 1 1 1 1 0 0 1 1 0 1 0 1 0 0 0 0 1 0 1 1 0 1 1 1 0 1 0 1 1 1 0 1 0 0 1 0 1 0 1 1 1 1 1 1 0 0
0 1 0 1 1 0 1 0 0 0 1 1 0 0 0 0 0 0 0 1 1 0 1 0 1 1 1 0 0 1 0 1 0 1 0 0 1 0 0 1 1 1 1 1 1 0 1 0 0 0
1 1 0 1 1 0 1 0 1 0 1 0 1 1 0 1 0 1 1 0 1 0 0 1 0 1 1 1 0 1 0 0 0 0 1 0 0 0 1 1 0 1 0 1 1 0 0 0 0 0
1 1 0 0 1 0 0 1 0 1 1 1 0 1 0 1 1 0 0 1 0 1 0 1 0 1 1 0 0 1 1 1 0 0 0 1 1 1 1 1 1 1 0 0 0 1 1 0 0 1
1 1 0 1 1 0 1 1 0 1 0 1 0 1 1 1 1 0 1 1 1 0 0 1 1 0 1 1 1 1 0 1 0 0 1 0 1 1 1 0 0 1 1 1 1 1 1 1 1 0
1 1 0 0 1 0 0 0 0 0 0 1 0 1 0 0 0 0 1 0 1 1 0 1 0 0 1 1 0 1 1 1 1 0 0 1 1 1 0 1 1 1 1 0 0 0 1 1 0 0
1 0 0 0 1 1 1 0 1 0 0 1 0 1 1 1 0 0 1 1 0 1 0 1 0 1 0 0 0 1 1 1 1 0 1 0 1 1 0 0 1 0 1 0 0 1 0 1 1 1
1 1 1 1 1 1 1 0 1 1 0 0 1 0 0 0 1 0 0 1 1 1 1 1 0 0 1 0 0 1 1 1 1 1 1 1 0 0 1 1 1 0 1 1 0 0 1 0 1 1
1 1 1 0 1 1 0 0 0 0 1 1 1 1 0 0 0 1 0 0 1 0 1 1 1 0 0 0 0 1 0 0 1 1 1 0 1 0 1 0 1 0 0 1 0 1 0 0 1 1
0 0 1 0 1 1 1 1 0 1 0 0 1 0 1 1 1 0 1 1 1 1 0 0 0 1 0 0 1 0 1 0 0 0 1 0 1 1 0 1 1 1 0 1 1 0 0 1 1 1
0 0 0 1 1 0 1 0 0 0 1 0 1 0 0 1 0 0 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 1 1 0 1 1 0 1
0 1 1 0 1 0 0 0 0 0 1 0 0 1 1 0 1 1 1 0 0 1 1 0 0 0 1 1 1 1 1 1 1 0 0 1 1 1 1 0 1 1 0 0 0 1 1 0 0 0
1 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 0 1 1 1 1 1 0 0 0 0 1 1 1 1 1 0 1 0 1 0 1 0 0 0 1 1 1 1 1 0 1 0 0 0 0 0 0 0 0 0 1 0 1 1 0 1 0 0
1 0 1 1 1 1 0 1 0 1 1 1 1 0 0 1 0 0 0 1 0 0 1 1 1 1 1 1 0 1 0 1 1 0 1 0 1 1 1 0 1 1 0 1 1 1 0 1 0 1
0 1 1 1 1 1 1 0 0 0 1 0 1 0 0 1 1 0 1 0 1 1 1 1 0 1 0 1 0 1 1 0 0 1 1 0 1 1 0 1 0 1 0 1 0 0 1 1 0 1
1 1 1 0 1 0 0 1 0 0 1 1 0 1 0 1 1 1 1 1 1 1 1 1 0 1 0 1 0 1 1 1 1 0 1 0 0 1 1 0 0 0 1 1 1 0 1 0 1 1
1 0 0 0 1 1 1 0 1 0 1 0 0 0 1 1 1 0 1 0 1 0 1 0 0 1 1 1 1 1 1 0 1 0 0 0 1 0 1 1 1 1 1 1 1 0 0 0 0 0
1 1 0 0 1 1 0 0 1 0 0 1 1 1 0 0 1 1 0 1 1 1 1 1 1 1 0 0 1 1 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 1 0 1 1 1
0 1 1 0 1 0 0 0 1 0 0 0 1 1 0 1 0 1 0 1 0 1 0 0 0 0 0 0 1 1 0 1 1 1 1 1 1 1 0 0 0 1 1 1 0 1 1 1 1 0
0 1 0 0 1 0 1 1 0 1 1 0 1 1 1 1 1 0 0 1 1 0 1 0 0 0 1 1 1 1 1 0 1 1 1 1 0 1 1 1 1 0 0 1 0 0 1 0 0 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 0 0 1 0 1 0 0 1 0 0 1 1 0 0 1 1 0 0 1 0 1 1 0 1 1 0 0 0 0 1 0 1 1 1 0 1 1 1 0 1 1
1 0 1 0 1 0 0 0 0 1 0 0 1 1 0 1 1 1 1 0 1 0 1 0 1 0 0 0 1 1 1 0 0 0 0 1 0 1 1 0 0 1 0 0 0 1 1 1 1 1
0 0 1 0 1 1 1 1 0 1 0 0 0 0 0 1 0 1 1 0 1 1 1 1 0 1 0 1 0 1 0 1 1 1 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 1
1 0 1 1 1 0 1 1 1 0 1 0 0 1 0 1 0 0 0 1 1 1 1 0 0 0 1 0 1 1 0 1 0 1 0 0 1 1 1 1 0 0 1 0 0 0 1 1 1 1
1 1 0 1 1 0 0 1 1 1 1 0 1 0 1 0 0 1 0 0 0 0 0 0 1 0 0 0 0 1 0 0 1 0 0 0 1 1 0 0 1 1 0 0 0 0 0 0 1 0
1 0 0 1 1 1 1 1 0 0 0 0 1 1 1 0 0 1 0 1 1 0 0 0 1 0 1 0 1 1 1 1 0 1 0 1 1 0 0 0 1 0 0 0 1 1 0 1 0 1
1 1 1 1 1 0 0 0 1 0 1 0 0 0 1 0 0 0 0 0 1 1 0 1 1 0 0 0 1 1 0 1 0 1 0 0 0 1 1 1 1 0 1 1 0 1 0 1 0 1
0 0 0 0 1 0 1 0 0 0 0 0 1 0 0 0 1 0 1 1 1 1 0 0 0 1 0 1 1 1 0 0 0 1 0 0 0 0 0 1 0 1 1 1 1 1 0 0 1 0
1 1 1 1 0 0 0 0 1 1 0 1 1 1 1 1 0 1 1 0 1 1 0 0 1 0 1 0 1 1 0 1 1 1 1 1 1 1 1 1 0 1 1 0 0 0 1 1 0 0
0 0 1 1 1 1 1 0 1 0 1 0 0 0 1 0 1 0 0 1 1 1 1 0 1 1 0 1 0 1 0 1 1 1 0 1 1 1 1 0 1 0 0 0 1 0 0 1 1 1
0 1 0 1 1 0 1 1 1 0 1 1 1 1 0 1 1 0 0 0 0 0 0 1 1 1 1 1 1 0 1 0 1 0 1 0 0 1 1 1 1 1 0 0 0 0 0 1 1 0
1 1 1 0 0 0 1 1 0 0 0 1 0 0 0 0 0 1 1 1 1 1 1 0 1 1 0 0 0 1 0 1 0 1 0 0 1 0 1 1 0 1 0 0 1 1 0 1 1 1
1 0 0 0 0 0 1 0 0 0 1 0 1 1 1 1 0 0 0 0 1 1 1 1 0 1 0 0 1 0 0 0 0 0 0 1 0 1 0 1 0 0 1 1 1 0 1 0 0 1
1 0 1 0 1 0 0 1 1 1 0 0 0 1 1 0 1 1 0 1 0 1 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 1 1 0 1 1 1 0 0 0 1
1 0 0 0 1 1 1 0 1 0 0 1 1 1 0 1 1 1 1 1 0 1 0 1 1 0 1 1 0 1 1 0 1 0 1 1 0 1 1 1 1 0 0 0 0 1 1 1 1 0
1 0 1 0 0 0 1 1 1 0 0 0 0 1 1 1 1 1 1 1 0 0 0 1 0 1 1 0 0 1 1 0 0 1 0 0 0 1 1 0 0 1 0 1 0 0 0 1 0 1
1 1 0 1 0 0 1 0 0 0 1 1 1 1 0 0 0 1 0 1 0 1 0 1 1 0 1 0 0 1 0 0 1 1 1 1 0 1 1 1 0 1 0 1 1 0 0 0 0 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
40 47
60 80
0 1 1 0 0 1 0 0 0 1 1 1 1 0 0 1 1 1 0 1 1 0 1 0 1 0 0 1 0 0 0 1 0 1 0 1 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 0 0 0 0 1 0 1
1 1 0 1 0 1 0 0 1 1 0 1 0 0 1 1 0 1 1 0 1 0 0 0 1 1 0 1 0 1 0 0 1 1 1 1 0 1 0 1 0 1 1 1 1 0 0 1 0 0 1 0 0 1 1 0 0 0 0 0
1 1 0 0 1 0 1 1 0 0 0 0 0 1 0 1 1 0 1 0 1 0 1 1 0 1 1 0 0 0 0 0 1 0 1 0 0 1 1 1 1 1 1 1 1 1 1 0 0 1 0 0 0 0 0 1 0 0 1 0
1 0 0 0 1 0 0 0 1 1 1 0 0 1 1 0 1 0 0 1 1 0 0 1 1 0 0 0 0 0 1 1 1 1 1 0 1 1 1 0 1 1 0 1 0 1 0 0 1 0 1 0 1 1 1 0 1 0 0 1
1 1 1 1 1 1 1 0 0 1 0 0 1 1 0 0 0 1 0 0 1 0 1 1 1 0 1 1 1 0 1 0 1 1 1 0 0 0 1 0 0 0 1 0 1 1 1 1 0 1 1 1 0 1 0 1 0 0 1 0
0 0 0 1 1 0 1 1 0 1 0 1 0 0 0 1 0 0 0 0 1 0 1 1 0 0 1 1 0 0 1 0 1 0 0 1 0 0 0 1 1 1 0 1 1 1 0 0 0 1 0 0 0 1 1 0 1 1 1 0
0 1 0 0 1 0 1 0 0 0 1 1 0 0 0 0 0 1 1 0 0 1 1 0 1 1 1 1 1 0 0 0 0 1 0 0 1 0 0 0 0 1 0 1 1 1 1 0 0 0 0 1 0 0 0 1 0 0 0 0
0 1 0 1 0 0 0 0 1 0 0 0 0 0 0 1 1 1 0 1 0 1 1 1 0 1 1 0 0 0 1 1 1 0 1 1 1 0 0 1 0 1 1 0 1 1 1 1 1 0 0 0 1 1 1 1 0 1 0 0
0 1 0 1 1 1 1 0 0 1 0 1 0 0 0 1 1 1 1 1 0 1 1 0 1 0 0 0 1 0 1 0 0 1 1 0 0 1 1 0 0 1 0 0 1 0 1 1 1 0 0 1 1 1 0 0 1 1 1 1
1 0 0 1 0 0 1 1 1 1 1 1 0 0 0 0 0 1 0 0 0 0 0 1 1 0 1 0 0 1 0 0 0 0 1 0 1 0 1 0 0 0 1 1 0 0 1 0 0 1 0 1 1 1 0 1 1 0 0 0
1 0 0 1 0 1 0 1 1 1 1 1 1 0 1 0 0 1 0 1 1 1 1 0 1 0 0 1 1 0 1 1 1 1 1 0 0 0 1 0 1 1 0 1 0 0 1 1 1 0 1 1 1 0 0 0 0 1 1 0
0 1 0 1 1 0 0 1 1 1 1 0 0 1 0 0 1 0 1 1 1 0 1 0 1 0 1 1 1 0 0 1 1 0 1 0 0 0 1 0 0 0 0 1 1 0 1 0 1 0 1 1 1 0 0 0 1 0 1 1
0 0 1 1 1 1 0 1 0 0 1 1 0 1 1 1 1 1 1 0 0 0 1 1 0 0 0 0 0 1 0 1 1 0 0 0 1 1 1 0 0 0 1 1 1 0 1 1 0 0 0 1 0 1 1 1 1 0 1 1
1 1 0 1 1 0 1 0 0 1 0 0 0 1 0 1 1 1 0 1 1 1 0 1 1 1 0 0 1 1 1 1 1 1 1 1 1 1 0 0 1 1 0 1 1 0 1 1 1 0 0 1 0 1 1 0 0 0 0 1
0 0 1 0 1 0 1 1 1 0 0 1 0 0 1 1 1 1 0 1 1 1 0 0 0 1 1 0 0 1 0 1 1 0 1 0 0 0 1 0 1 1 1 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 1 1
0 1 1 0 0 1 0 0 1 0 1 1 0 0 0 0 1 0 0 1 0 1 1 0 1 0 1 0 0 0 1 0 1 0 1 0 1 1 1 0 0 1 0 0 1 0 1 0 0 1 0 1 0 1 1 1 1 0 1 1
0 1 0 0 1 1 0 1 1 0 0 0 0 1 0 1 0 0 1 1 1 1 1 0 0 1 0 0 1 1 1 0 1 1 1 1 0 1 1 1 1 0 1 1 0 0 0 1 0 1 0 0 1 1 1 1 0 0 0 1
0 1 1 0 0 0 0 1 1 0 0 0 0 1 0 1 1 1 0 0 1 0 0 0 1 1 1 1 1 1 1 0 1 0 1 1 1 0 1 0 0 0 0 0 1 1 1 1 0 1 0 0 1 1 0 1 1 0 1 0
1 1 1 0 0 1 1 1 1 0 1 1 0 0 1 1 0 0 0 1 0 1 1 0 0 0 0 1 0 1 1 0 1 0 0 1 0 1 1 1 0 1 0 1 0 1 0 1 1 0 1 1 0 0 1 0 1 0 1 0
0 0 1 1 0 0 1 0 0 1 0 1 1 0 1 0 1 0 1 1 1 0 1 0 1 0 1 0 0 0 1 1 0 0 1 1 0 1 0 1 1 0 0 0 1 1 0 0 0 0 0 0 0 1 0 0 0 1 1 1
0 0 1 0 0 0 1 1 0 0 0 0 0 0 0 0 1 1 0 1 1 1 1 1 1 0 0 0 1 0 0 0 1 1 1 1 1 0 1 1 0 1 0 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 0
1 0 0 0 0 0 1 1 0 1 1 1 1 0 0 1 0 0 1 0 1 1 1 1 0 1 0 1 1 0 1 0 1 1 1 1 0 1 1 1 0 0 0 1 1 1 0 0 0 0 0 1 1 1 0 0 1 0 1 1
0 0 0 1 0 0 1 1 0 1 1 1 0 1 0 0 1 1 1 1 1 1 0 1 0 0 1 0 0 0 1 1 0 0 0 1 1 0 0 0 1 1 0 1 0 1 0 0 0 0 0 0 1 1 1 0 1 1 0 0
0 0 0 0 0 1 0 0 1 1 1 0 0 1 0 0 1 0 1 1 1 0 1 0 0 1 0 0 1 0 0 0 0 1 0 0 0 1 0 1 1 0 1 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 0
1 0 1 0 0 1 1 1 1 0 1 1 1 1 0 0 1 0 0 1 0 1 0 0 1 0 0 1 1 1 0 0 0 0 0 0 1 1 1 1 1 0 0 1 0 1 1 0 0 0 1 1 1 0 1 1 0 0 0 1
0 1 0 0 1 0 1 0 1 0 0 0 1 1 1 0 1 1 0 0 1 1 1 1 1 1 1 1 0 0 1 1 0 0 1 1 1 1 0 0 1 0 0 0 0 1 0 1 1 1 1 1 0 1 0 0 0 0 0 1
0 0 1 1 0 1 0 1 0 0 0 0 1 0 0 1 0 0 0 1 1 0 0 0 0 1 1 0 0 0 1 1 1 0 0 0 0 0 0 0 1 1 0 0 0 1 0 1 0 0 0 1 0 1 1 1 0 1 0 1
0 0 0 1 0 1 1 0 1 0 1 1 0 1 0 0 1 1 0 0 0 1 0 0 1 0 1 0 0 0 0 1 0 0 1 0 0 0 0 0 1 0 0 1 1 1 1 0 1 0 0 1 1 0 1 0 1 1 0 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 0 1 0 1 0 1 1 0 1 0 0 1 1 0 1 1 1 0 1 1 0 0 1 0 1 0 1 0 0 0 1 0 1 0 0 1 0 0 0 1 0 1 1 1 1 0 1 0 1 0 1 1 1 1 0 0 0 1 1
1 0 1 1 1 1 0 0 0 1 1 1 1 1 1 1 1 0 0 1 0 0 1 0 0 1 1 0 0 0 1 0 1 1 1 1 1 0 1 1 1 1 0 0 0 1 0 0 0 1 0 1 0 0 1 0 0 1 0 1
0 1 1 1 0 0 0 1 1 1 1 1 1 0 0 1 0 0 1 0 0 0 1 1 0 0 0 1 0 1 0 1 1 1 0 1 1 0 0 1 1 0 1 0 1 1 1 1 0 0 1 0 0 0 0 0 1 1 0 1
1 1 0 1 0 0 0 0 0 1 0 0 1 1 0 0 0 1 0 0 0 0 0 0 1 0 1 0 0 1 0 0 0 1 0 1 1 1 1 0 0 1 0 1 0 0 0 1 0 1 1 0 1 1 0 0 1 0 1 1
0 0 0 1 0 1 1 1 1 0 1 1 1 0 0 1 0 0 0 1 0 1 1 1 0 1 0 1 1 0 0 1 0 1 0 1 0 0 0 0 0 1 0 1 0 1 0 0 0 0 0 0 1 1 0 0 0 0 1 0
1 1 0 1 0 1 0 0 1 0 0 0 1 1 1 0 0 1 0 0 1 1 0 0 0 0 0 0 0 1 1 0 0 1 1 0 1 1 0 0 0 0 0 0 0 1 0 0 1 1 0 0 0 1 0 1 0 1 0 1
1 0 1 1 0 0 0 0 1 0 0 0 1 0 0 0 0 1 1 1 0 0 0 0 0 0 0 1 0 1 0 1 0 1 1 1 0 0 1 1 1 0 0 0 1 1 1 0 0 0 0 1 1 0 1 0 0 1 1 1
1 1 1 0 1 0 1 0 1 0 1 0 1 1 0 0 0 0 0 1 1 1 1 1 1 0 1 1 0 1 1 0 0 1 1 1 1 0 1 0 1 0 0 1 0 0 1 0 0 1 1 1 0 1 0 0 0 1 0 1
1 1 1 0 1 1 1 1 1 0 1 0 0 1 1 0 1 0 1 1 0 0 1 0 0 0 1 1 1 0 1 1 1 1 0 1 1 0 1 1 0 0 1 0 1 0 0 0 0 1 0 0 1 0 0 1 0 0 0 0
1 1 1 1 1 1 0 0 0 1 1 0 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 0 0 1 1 1 1 1 1 1 1 1 1 0 0 1 1 1 0 0 0 0 1 1 1 1 0 1 0 1 1 1 1
1 1 1 1 0 0 0 0 0 1 1 0 0 0 1 1 1 1 0 1 0 1 1 1 0 1 1 1 1 1 0 1 0 1 0 1 0 0 0 0 1 1 0 0 1 1 0 1 1 1 1 1 1 1 1 0 1 0 0 1
1 1 1 1 0 1 1 0 0 1 1 1 0 0 1 1 1 0 0 0 0 0 1 0 0 1 0 0 1 0 1 0 0 1 1 1 0 0 1 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 0 0 0 0 0 1
1 1 1 0 1 0 1 1 1 0 0 1 1 1 1 1 1 1 0 1 1 1 0 1 0 1 0 1 0 1 1 1 0 1 0 1 1 0 1 0 0 0 0 1 1 0 1 0 0 0 1 1 0 0 1 0 0 0 1 0
1 1 1 0 1 1 1 1 1 0 0 0 1 1 0 0 1 0 1 0 1 1 0 0 0 0 1 1 1 0 0 0 1 1 0 1 1 1 0 1 1 1 1 1 1 1 0 0 0 0 1 0 1 0 1 0 0 0 0 0
0 0 0 0 1 1 0 1 1 1 1 0 1 0 1 1 1 1 1 1 0 0 1 0 1 0 0 1 1 0 1 0 1 1 1 0 0 1 1 0 1 1 0 1 0 1 1 1 0 0 1 1 0 0 0 0 0 0 1 0
0 0 0 1 1 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 1 0 1 0 0 1 0 0 1 0 0 1 0 1 0 1 0 0 1 1 1 1 0 1 1 0 1 1 0 0 0 0 1 1 1 1 1 1 0 0
0 1 0 1 1 0 1 1 1 1 0 1 1 1 1 0 1 0 0 1 1 1 0 1 1 0 1 1 1 0 0 0 0 1 1 0 0 1 0 0 0 1 1 0 0 0 0 0 1 1 0 0 0 1 1 1 0 0 1 1
1 0 1 0 1 1 0 0 1 1 1 0 0 1 0 1 1 0 1 1 0 1 1 0 0 0 1 0 1 0 0 1 0 1 1 1 0 0 0 0 0 1 0 1 0 0 0 0 0 1 0 1 1 1 0 0 1 1 0 1
0 0 0 1 1 1 0 0 1 0 1 0 0 1 1 1 0 1 1 0 0 1 1 0 0 0 0 0 0 1 0 1 0 1 0 0 1 1 1 0 1 0 1 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0
1 0 1 0 0 0 1 1 0 0 0 1 1 1 1 0 1 1 0 1 1 0 0 1 1 1 1 1 1 0 1 1 1 1 1 0 1 1 1 1 1 0 0 0 1 1 0 1 0 0 1 1 1 0 1 1 1 1 1 1
0 1 1 0 0 1 1 0 0 1 0 0 0 0 1 1 0 1 0 0 1 0 1 0 1 0 1 1 0 1 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 0 0 0 1
0 1 0 1 0 1 1 0 1 0 1 0 0 0 1 1 1 0 1 0 0 0 0 0 0 0 1 0 1 1 0 0 0 0 1 1 1 0 1 1 1 0 1 1 0 0 1 1 0 1 0 1 0 1 0 0 1 0 0 0
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1 1 1 0 1 1 0 0 1 1 1 1 1 0 1 0 1 1 1 0 0 0 1 1 1 0 0 1 1 1 1 1 1 1 0 1 0 1 1 1 0 1 1 1 1 0 1 0 1 0 0 0 1 1 0 1 1 1 1 0 0 1 1 1 1 0 0 0 1 1 0 1 0 0 1 1 1 0 1 1 1 1 1 1 1 0 1 1 1 1 0 0 1 0 1 1 0 0 1 0
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50 50
    
    #include <iostream>
using namespace std;

int T, n, m, X, Y, result;
int mp[101][101], vs[101][101];

void resetVs(){
	for(int i = 1; i <= n; i++){
		for(int j = 1; j <= m; j++) vs[i][j] = 0;
	}
}

int q[10001][3];
int head, tail;

int dx[4] = {-1, 1, 0, 0};
int dy[4] = {0, 0, -1, 1};

void init(){
	head = 0, tail = 0;
	result = 0;
	resetVs();
}

void push(int x, int y, int cnt){
	q[tail][0] = x, q[tail][1] = y, q[tail++][2] = cnt;
}

void pop(){
	head++;
}

bool isEmpty(){
	return head == tail;
}

int getX(){
	return q[head][0];
}

int getY(){
	return q[head][1];
}

int getC(){
	return q[head][2];
}

void bfs(){
	push(X, Y, 1);
	vs[X][Y] = 1;
	while(!isEmpty()){
		int x = getX();
		int y = getY();
		int c = getC();
		if(c > result) result = c;
		pop();
		for(int i = 0; i < 4; i++){
			int xx = x + dx[i];
			int yy = y + dy[i];
			if(xx >= 1 && xx <= n && y >= 1 && y <= m && mp[xx][yy] && !vs[xx][yy]){
				vs[xx][yy] = 1;
				push(xx, yy, c+1);
			}
		}
	}
}

int main(){
	freopen("input.txt", "r", stdin);
	cin >> T;

	for(int tc = 1; tc <= T; tc++){
		// Input
		cin >> m >> n;
		for(int i = 1; i <= n; i++){
			for(int j = 1; j <= m; j++) cin >> mp[i][j];
		}
		cin >> Y >> X;

		// Initial
		init();

		// Solve Problem
		bfs();

		// Output
		cout << result << endl;
	}

	return 0;
 }