func_code_string: #include <bits/stdc++.h>   using namespace std;   void cp() {     ios ::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);   }   int main() {     cp();     {       string s, t;       cin >> s >> t;       if (s.length() == t.length() + 1) {         long long m = 0;         long long in = -1;         char f;         long long j = 0;         for (long long i = 0; i < s.length(); i += 1) {           if (s[i] != t[j]) {             f = s.at(i);             in = i;             m++;             j--;           }           j++;         }         vector<long long> ans;         if (m == 1) {           while (in > -1) {             if (s[in] == f) {               in--;             } else {               break;             }           }           in++;           while (in < s.length()) {             if (s[in] == f) {               ans.push_back(in + 1);               in++;             } else {               break;             }           }           cout << ans.size();           cout << endl;           ;           for (long long i = 0; i < ans.size(); i += 1) cout << ans[i] <<    ;         } else {           cout <<  0 n ;         }       } else {         cout <<  0 n ;       }     }     return 0;   }   