#define _USE_MATH_DEFINES
#include <string>
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <fstream>
#include <deque>
#include <vector>
#include <stdlib.h>
#include <set>
#include <iostream>
using namespace std;

int main() {

    ifstream in("input.txt");
    ofstream out("output.TXT");

    int mas[750][750];
    vector <int> vecmin;
    vector <int> vecmax;


    int n, m,count = 0;
    in >> n >> m;

    for (int i = 0; i < n; i++) {
        vecmin.push_back(1001);
    }

    for (int i = 0; i < m; i++) {
        vecmax.push_back(-1001);
    }


    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            in >> mas[i][j];
            vecmin[i] = (min(vecmin[i], mas[i][j]));
            vecmax[j] = (max(vecmax[j], mas[i][j]));
        }
    }

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            if (mas[i][j] == vecmin[i] &&  mas[i][j] == vecmax[j]) {
                count++;
            }
        }
    }

    out << count;

    in.close();
    out.close();
    return 0;
}