编程题:公鸡打鸣

### 输入格式:

### 输出格式:

### 输入样例1:
in
2 3 3
1 1 -1 0
-1 1 1 1
1 1 -1 1
### 输出样例1:
out
1

### 输入样例2:
in
2 3 4
1 2 -1 2
-1 1 1 1
-1 4 1 1
1 4 1 1
### 输出样例2:
out
4

### 输入样例3:
in
2 3 1
1 2 -1 2
### 输出样例3:
out
-1

答案:若无答案欢迎评论