t3

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

bool is_square(const vector<vector<int>> &g, int r, int c, int len)
{
    if (r - len < 0 || c - len < 0)
        return false;
    for (int i = r; i >= r - len; --i)
        if (g[i][c] == 0 || g[i][c - len] == 0)
            return false;
    for (int i = c; i >= c - len; --i)
        if (g[r][i] == 0 || g[r - len][i] == 0)
            return false;
    return true;
}

int main(int argc, char **argv)
{
    int n, m;
    cin >> n >> m;
    vector<vector<int>> g(n, vector<int>(m));
    for (int i = 0; i < n; ++i)
        for (int j = 0; j < m; ++j)
            cin >> g[i][j];
    int ans_r, ans_c, ans_w = 0;
    for (int i = 0; i < n; ++i)
        for (int j = 0; j < m; ++j) {
            int max_d = min(i, j);
            while (max_d >= ans_w) {
                if (is_square(g, i, j, max_d))
                    ans_w = max_d + 1, ans_r = i, ans_c = j;
                max_d--;
            }
        }
    cout << ans_r << ' ' << ans_c << ' ' << ans_w << endl;
    return 0;
};