import java.util.ArrayList;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        int n = in.nextInt();
        int m = in.nextInt();

        int[][] arr = new int[n][m];
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < m; j++) {
                arr[i][j] = in.nextInt();
            }
        }


        ArrayList minsX;
        ArrayList minsY;

        ArrayList gMinsX = new ArrayList();
        ArrayList gMinsY = new ArrayList();
        for (int j = 0; j < n; j++) {
            minsX = new ArrayList();
            minsY = new ArrayList();
            int min = 1000000;
            for (int i = 0; i < m; i++) {
                if (arr[j][i] == min) {
                    minsX.add(j);
                    minsY.add(i);
                }
                if (arr[j][i] < min) {
                    min = arr[j][i];

                    minsX = new ArrayList();
                    minsY = new ArrayList();
                    minsX.add(j);
                    minsY.add(i);
                }
            }

            gMinsX.addAll(minsX);
            gMinsY.addAll(minsY);
        }

        ArrayList maxsX;
        ArrayList maxsY;

        ArrayList gMaxsX = new ArrayList();
        ArrayList gMaxsY = new ArrayList();
        for (int i = 0; i < m; i++) {
            maxsX = new ArrayList();
            maxsY = new ArrayList();
            int max = -1;
            for (int j = 0; j < n; j++) {
                if (arr[j][i] == max) {
                    maxsX.add(j);
                    maxsY.add(i);
                }
                if (arr[j][i] > max) {
                    max = arr[j][i];

                    maxsX = new ArrayList();
                    maxsY = new ArrayList();
                    maxsX.add(j);
                    maxsY.add(i);
                }
            }

            gMaxsX.addAll(maxsX);
            gMaxsY.addAll(maxsY);
        }

        int counter = 0;
        for (int i = 0, li = gMinsX.size(); i < li; i++) {
            for (int j = 0, lj = gMaxsX.size(); j < lj; j++) {
                if (gMinsX.get(i) == gMaxsX.get(j) &&
                        gMinsY.get(i) == gMaxsY.get(j)) counter += 1;
            }
        }

        System.out.println(counter);
    }
}