func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, k, a[100005];   int main() {     ios_base::sync_with_stdio(0);     cin.tie();     cout.tie();     cin >> n >> k;     if (k < n / 2 || (n == 1 && k)) {       cout << -1;       return 0;     }     if (n == 1 && k == 0) {       cout << 1;       return 0;     }     k = k - (n - 2) / 2;     cout << k <<     << k * 2 <<    ;     k = k * 2 + 1;     for (int i = 0; i <= n - 3; i++) cout << k + i <<    ;     return 0;   }   