func_code_string: #include <bits/stdc++.h>   using namespace std;   vector<vector<long long>> v;   map<int, pair<int, int>> mp;   int main() {     int k;     scanf( %i , &k);     v.resize(k + 1);     for (int i = 1; i <= k; i++) {       int x;       scanf( %i , &x);       v[i].push_back(0);       for (int j = 1; j <= x; ++j) {         int y;         scanf( %i , &y);         v[i][0] += y;         v[i].push_back(y);       }     }     for (int i = 1; i <= k; ++i) {       for (int j = 1; j < v[i].size(); ++j) {         long long x = v[i][0] - v[i][j];         if (mp[x].first && mp[x].first != i) {           cout <<  YES  << endl                << mp[x].first <<     << mp[x].second << endl                << i <<     << j;           return 0;         } else {           mp[x] = make_pair(i, j);         }       }     }     printf( NO );     return 0;   }   