func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long int inf = LLONG_MAX;   const long long int mod = 1e9 + 7;   const long long int N = 1e2 + 1;   long long int a[N][N];   long long int n;   int32_t main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     cin >> n;     for (long long int i = 0; i < n; ++i) {       for (long long int j = 0; j < n; ++j) {         cin >> a[i][j];       }     }     vector<long long int> good;     for (long long int i = 0; i < n; ++i) {       bool g = true;       for (long long int j = 0; j < n; ++j) {         if (a[i][j] == 1 or a[i][j] == 3) {           g = false;         }       }       if (g) good.push_back(i);     }     cout << good.size() << endl;     for (auto &i : good) {       cout << i + 1 <<    ;     }     cout << endl;     return 0;   }   