func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, k;     cin >> n >> k;     if ((n == 1 && k > 0) || (k == 0 && n > 1) || k < n / 2)       cout << -1;     else if (k == 0)       cout << 1;     else {       int x = k - (n - 2) / 2;       cout << x <<     << x * 2 <<    ;       for (int i = 1; i <= n - 2; ++i) cout << x * 2 + i <<    ;     }     return 0;   }   