func_code_string: #include <bits/stdc++.h>   using namespace std;   int main(int argc, char const *argv[]) {     string s, t;     cin >> s >> t;     int count = 0;     int i = s.length() - 1;     int j = t.length() - 1;     while (s[i] == t[j] && i >= 0 && j >= 0) {       i -= 1;       j -= 1;       count += 1;     }     cout << (s.length() + t.length() - 2 * count);     return 0;   }   