func_code_string: #include <bits/stdc++.h>   using namespace std;   using ll = long long;   template <class T>   void print(vector<T>& v, bool spaced = true) {     int n = v.size();     string space = (spaced ?     :   );     for (int i = 0; i < n; ++i) {       cout << v[i] << space;     }     cout <<   n ;   }   int main() {     ios_base::sync_with_stdio(false);     cin.tie(nullptr);     cout.tie(nullptr);     int n;     cin >> n;     string s, t;     cin >> s >> t;     map<char, int> m1;     map<char, int> m2;     for (int i = 0; i < n; ++i) {       m1[s[i]]++;       m2[t[i]]++;     }     for (int i = 0; i < n; ++i) {       if (find((t).begin(), (t).end(), s[i]) == t.end()) {         cout << -1 <<   n ;         return 0;       }     }     for (int i = 0; i < n; ++i) {       if (m1[s[i]] != m2[s[i]]) {         cout << -1 <<   n ;         return 0;       }     }     vector<int> moves;     for (int i = 0; i < n; ++i) {       for (int j = i; j < n; ++j) {         if (t[i] == s[j]) {           for (int k = j - 1; k > i - 1; --k) {             swap(s[k], s[k + 1]);             moves.push_back(k + 1);           }           break;         }       }     }     cout << moves.size() <<   n ;     print(moves);     return 0;   }   