func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long int n, m;     scanf( %lld , &n);     scanf( %lld , &m);     long long int i, j;     string s;     cin >> s;     long long int arr[400], brr[400];     for (i = 1; i <= 300; i++) {       arr[i] = i;       brr[i] = i;     }     while (m--) {       char a, b;       cin >> a >> b;       long long int ind1 = brr[a];       long long int ind2 = brr[b];       arr[ind1] = b;       arr[ind2] = a;       brr[b] = ind1;       brr[a] = ind2;     }     for (i = 0; i < (long long int)s.size(); i++) {       s[i] = (char)arr[s[i]];     }     cout << s <<   n ;   }   