func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long t;     cin >> t;     while (t--) {       long long n;       cin >> n;       string s;       cin >> s;       long long i;       map<char, long long> mp;       for (i = 0; i < n; i++) {         mp[s[i]]++;       }       if (n == 2) {         if (s[0] >= s[1]) {           cout <<  NO  << endl;         } else {           cout <<  YES  << endl;           cout << 2 << endl;           cout << s[0] <<     << s.substr(1, n) << endl;         }       } else {         cout <<  YES  << endl;         cout << 2 << endl;         cout << s[0] <<     << s.substr(1, n) << endl;       }     }   }   