#include <iostream>
using namespace std;
int main() {
    int n, m;
    cin >> n >> m;
    int a[200][200];
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cin >> a[i][j];
        }
    }
    int b, c;
    cin >> b >> c;
    b--; 
    c--;
    int x = a[b][c];
    int count = 0;
    for (int j = 0; j < m; j++) {
        if (j != c && a[b][j] == x) {
            count++;
        }
    }
    for (int i = 0; i < n; i++) {
        if (i != b && a[i][c] == x) {
            count++;
        }
    }
     
    cout << count << endl;
    return 0;
}
/**************************************************************
	Problem: 1998
	User: jiangyuanfeng
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2104 kb
****************************************************************/