#include <bits/stdc++.h>
#include <iostream>
using namespace std;

int vectorAverage(vector<int> n){
    int out;
    int temp = 0;
    for (int i = 0; i<n.size(); i++) {
        temp = n[i] + temp;
    }
    out = temp / n.size();
    return out;
}

int main() {
    int n, m, temp, out;
    temp = 0;
    cin>>n>>m;
    vector<vector<int>> nap(m, vector<int> (n));
    vector<int> temp1(m);


    for (int i = 0; i<n; i++) {
        for (int j = 0; j<m; j++) {
            cin >> nap[i][j];
        }
    }

    for (int i = 0; i<n; i++) {
        for (int j = 0; j<m; j++) {
            temp1[j] = nap[i][j];
        }
        if (vectorAverage(temp1) > temp) {
            out = i +1;
        }
    }
    

    cout<<out;


}