func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     string nameOne, nameTwo, tmpOne, tmpTwo;     cin >> nameOne >> nameTwo;     int n;     cin >> n;     cout << nameOne <<     << nameTwo << endl;     for (int i = 0; i < n; i++) {       cin >> tmpOne;       cin >> tmpTwo;       if (tmpOne == nameOne)         nameOne = tmpTwo;       else         nameTwo = tmpTwo;       cout << nameOne <<     << nameTwo << endl;     }     return 0;   }   