#include <iostream>
using namespace std;

int main()
{
    int n, m, v[101][101];

    cin >> n >> m;
    for (int i = 1; i <= n; ++i)
        for (int j = 1; j <= m; ++j)
            cin >> v[i][j];

    int fr[10202] = {0};
    for (int i = 1; i <= n; ++i)
    {
        for (int j = 1; j <= m; ++j)
            fr[v[i][j]]++;
    }

    int maxfr = -1, maxnr = -1;
    for (int i = 1; i <= n; ++i)
    {
        for (int j = 1; j <= m; ++j)
        {
            if (fr[v[i][j]] >= maxfr)
            {
                maxfr = fr[v[i][j]];

                if (v[i][j] > maxnr)
                    maxnr = v[i][j];
            }
        }
    }

    cout << maxnr;
}