#include<bits/stdc++.h> using namespace std; int main() { int n; cin >> n; for (int k = 2; k <= n; k++) { int c = 0; for (int i = 1; i <= k; i++) { if (k % i == 0) { c++; } } if (c == 2) { cout << k << " "; } } return 0; }