func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     vector<string> v;     int i, j, k, l, l1, l2;     string a, b, s1, s2, s;     cin >> a >> b;     l1 = a.size();     l2 = b.size();     for (i = 1; i <= l1; i++) {       for (j = 1; j <= l2; j++) {         for (k = 0, s1 =   ; k < i; k++) {           s1 += a[k];         }         for (l = 0, s2 =   ; l < j; l++) {           s2 += b[l];         }         s = s1 + s2;         v.push_back(s);       }     }     sort(v.begin(), v.end());     cout << v[0] << endl;     return 0;   }   