#include <iostream>
#include <vector>
using namespace std;
 
int main() {
    int n, m;
    cin >> n >> m;
     
    vector<vector<int>> matrix(n, vector<int>(m));
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cin >> matrix[i][j];
        }
    }
     
    int x, y;
    cin >> x >> y;
    x--; y--; // 转换为0-based索引
     
    int age = matrix[x][y];
    int count = 0;
     
    // 统计同行的朋友
    for (int j = 0; j < m; j++) {
        if (j != y && matrix[x][j] == age) {
            count++;
        }
    }
     
    // 统计同列的朋友
    for (int i = 0; i < n; i++) {
        if (i != x && matrix[i][y] == age) {
            count++;
        }
    }
     
    cout << count << endl;
    return 0;
}
/**************************************************************
	Problem: 1998
	User: fuyijun
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2076 kb
****************************************************************/