func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(false);     int64_t n, l, d;     cin >> n >> d >> l;     int a[25001];     for (int i = 1; i <= n; i++) {       if (d > 0) {         a[i] = l;       } else {         a[i] = 1;       }       d = a[i] - d;     }     a[n] = a[n] - d;     if (a[n] <= 0 || a[n] > l) {       cout << -1;     } else {       for (int i = 1; i <= n; i++) {         cout << a[i] <<    ;       }     }     return 0;   }   