func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     string ch, t;     int n, s, i;     bool ok1 = 0, ok2 = 0;     scanf( %d %d , &n, &s);     if (9 * n >= s) {       if (n == 1 && s == 0) {         cout << 0 <<     << 0 << endl;       } else if (s == 0) {         cout << -1 <<     << -1 << endl;       } else {         while (n--) {           ch += min(9, s) +  0 ;           t = ch;           s -= 9;           if (s < 0) s = 0;         }         reverse(t.begin(), t.end());         if (t[0] ==  0 ) {           t[0] =  1 ;           for (i = 1; i < t.size(); i++) {             if (t[i] >  0 ) {               t[i] = t[i] - 1;               break;             }           }         }         cout << t <<     << ch << endl;       }     } else {       cout << -1 <<     << -1 << endl;     }     return 0;   }   