func_code_string: #include <bits/stdc++.h>   using namespace std;   const int INF = (int)1e9;   int main() {     int n, d, l;     vector<int> a;     cin >> n >> d >> l;     int a1 = 0;     for (int i = 0; i < n - 1; i++) {       if (d < 1)         a1 = 1;       else if (d >= l)         a1 = l;       else         a1 = d + 1;       a.push_back(a1);       d = a1 - d;     }     a.push_back(d);     if (a.back() < 1 || a.back() > l) {       cout << -1;       return 0;     }     for (int i = 0; i < n; i++) cout << a[i] <<    ;   }   