func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, w[26][26];     int money, cost, temp;     char a[100002], b[100002], x, y;     char result[100002];     for (int i = 0; i < 26; ++i) {       for (int j = 0; j < 26; ++j) {         w[i][j] = 1073741823;       }       w[i][i] = 0;     }     cin >> a >> b;     cin >> n;     for (int i = 0; i < n; ++i) {       cin >> x >> y >> cost;       x -=  a ;       y -=  a ;       w[x][y] = min(w[x][y], cost);     }     for (int k = 0; k < 26; ++k) {       for (int i = 0; i < 26; ++i) {         for (int j = 0; j < 26; ++j) {           w[i][j] = min(w[i][j], w[i][k] + w[k][j]);         }       }     }     n = strlen(a);     money = strlen(b) == n ? 0 : 1073741823;     for (int i = 0; i < n && money < 1073741823; ++i) {       cost = 1073741823;       for (int j = 0; j < 26; ++j) {         temp = w[a[i] -  a ][j] + w[b[i] -  a ][j];         if (temp < cost) {           cost = temp;           result[i] =  a  + j;         }       }       money += cost;     }     if (money < 1073741823) {       result[n] =   0 ;       cout << money << endl << result << endl;     } else {       cout <<  -1  << endl;     }     return 0;   }   