func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, m;     cin >> n >> m;     int a[n];     for (int i = 0; i < n; i++) a[i] = i + 1;     int cnt = (n / 2) * (n / 2);     if (n % 2 == 0) cnt -= n / 2;     if (cnt < m) {       cout << -1;       return 0;     }     int idx = n - 1;     while (m < cnt) {       if (cnt - (idx / 2) <= m) {         a[idx] += 2 * (cnt - m);         break;       } else {         cnt -= idx / 2;         if (idx + 1 == n)           a[idx] = 1000 * 1000 * 1000;         else           a[idx] = a[idx + 1] - 2 * n;       }       idx--;     }     for (int i = 0; i < n; i++) cout << a[i] <<    ;   }   