#include <bits/stdc++.h>
#pragma GCC optimize(2)
#define int long long
using namespace std;
#define pii pair<int, int>
const int MAX = 5e3;
const int N = MAX + 10;
const int INF = 1e18, MOD = 998244353;

int n;
bool a[N][N];
int out[N];
vector<int> my_out;

void find_max_out() {
    int p, max_out = 0;
    for (int i = 1; i <= n; i++) {
        if (out[i] > max_out) {
            max_out = out[i];
            p = i;
        }
    }
    my_out.push_back(p);
}

inline void solve() {
    cin >> n;

    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= n; j++) {
            char ch;
            cin >> ch;
            if (ch == '0') {
                a[i][j] = 0;
            } else {
                a[i][j] = 1;
                out[i]++;
            }
        }
    }

    // 1
    find_max_out();

    // 2
    int p = my_out[0];
    vector<int> v;
    for (int i = 1; i <= n; i++) {
        if (i == p) continue;
        if (a[p][i] == 0)
            v.push_back(i);
    }
    if (v.empty()) {
        cout << "NOT FOUND\n";
        return;
    }

    for (int i = 1; i <= n; i++) {
        out[i] = 0;
    }
    for (int x : v) {
        for (int i = 1; i <= n; i++) {
            if (a[x][i] == 1) {
                out[x]++;
            }
        }
    }
    find_max_out();

    // 3
    p = my_out[1];
    v.clear();
    for (int i = 1; i <= n; i++) {
        if (i == p) continue;
        if (a[p][i] == 0)
            v.push_back(i);
    }
    if (v.empty()) {
        cout << "NOT FOUND\n";
        return;
    }

    for (int i = 1; i <= n; i++) {
        out[i] = 0;
    }
    for (int x : v) {
        for (int i = 1; i <= n; i++) {
            if (a[x][i] == 1) {
                out[x]++;
            }
        }
    }
    find_max_out();

    for (int x : my_out) {
        cout << x << " ";
    }
    cout << "\n";
}

signed main() {
#ifdef Local
    freopen("D:/vs/in.txt", "r", stdin);
    // freopen("D:/vs/out.txt","w",stdout);
    clock_t start_time = clock();
#else
    ios::sync_with_stdio(0);
    cin.tie(nullptr);
#endif  // Local
    int T = 1;
    // cin >> T;
    while (T--) {
        solve();
    }
#ifdef Local
    cout << "Used " << (double)(clock() - start_time) << " ms" << endl;
#endif
    return 0;
}