func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     string s1, s2;     cin >> s1 >> s2;     if (s2.size() > s1.size()) swap(s1, s2);     int x = s1.size() - s2.size();     for (int i = 0; i < s1.size() && i < s2.size(); ++i) {       if (s1[s1.size() - i - 1] != s2[s2.size() - i - 1]) {         x = s1.size() - i + s2.size() - i;         break;       }     }     cout << x << endl;     return 0;   }   