#include <bits/stdc++.h>

using namespace std;

#pragma GCC target("avx2")
#pragma GCC optimize("O3")

const int DIM = 200005;
const int MXM = 1000005;

vector<int> val[DIM], ord;
int lst[MXM], idx[DIM];

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    
    int n, m;
    cin >> n >> m;

    for (int i = 1; i <= n; ++i) {
        int k;
        cin >> k;

        for (int j = 1; j <= k; ++j) {
            int x;
            cin >> x;

            val[i].push_back(x);
        }

        // sort(begin(val[i]), end(val[i]));

        ord.push_back(i);
    }

    sort(begin(ord), end(ord), [](int x, int y) {
        return val[x].size() > val[y].size();
    });


    int it = 1;
    for (int x : ord) {
        int b = -1;
        idx[x] = it++;
        vector<int> sol;
        for (int bit : val[x]) {
            sol.push_back(lst[bit]);
            lst[bit] = x;
        }
        sort(begin(sol), end(sol));
        sol.erase(unique(sol.begin(), sol.end()), sol.end());
        sort(begin(sol), end(sol), [](int x, int y) {
            return idx[x] > idx[y];
        });

        if (sol.size() >= 2) {
            cout << "YES\n" << x << " " << sol[0] << "\n";
            return 0;
        }
    }

    cout << "NO\n";
    return 0;
}