#include <bits/stdc++.h>   using namespace std;   int main() {     int n, m;     cin >> n >> m;     char a[n][m];     int num = 0;     int mn[m];     for (int i = 0; i < n; i++) {       for (int j = 0; j < m; j++) {         cin >> a[i][j];       }     }     for (int i = 0; i < m; i++) {       num = 0;       for (int j = 0; j < n; j++) {         num = max(num, a[j][i] -  0 );       }       mn[i] = num;     }     int c = 0, ans = 0;     for (int i = 0; i < n; i++) {       c = 0;       for (int j = 0; j < m; j++) {         if (mn[j] == a[i][j] -  0 ) {           c = 3;         }       }       if (c == 3) {         ans++;       }     }     cout << ans;     return 0;   }   