func_code_string: #include <bits/stdc++.h>   using namespace std;   const int M = 2e5 + 1;   int vis[M], vis2[M];   int main() {     string t, s;     cin >> s >> t;     int a = 0, b = 0;     for (char c : t) vis[c]++;     int i = 0;     for (char c : s) {       if (vis[c]) {         vis[c]--;         a++;         vis2[i] = 1;       }       i++;     }     for (i = 0; i < s.size(); i++) {       if (vis2[i]) continue;       char c = s[i];       if (islower(c))         c = toupper(c);       else         c = tolower(c);       if (vis[c]) b++, vis[c]--;     }     cout << a <<     << b;   }   