#include using namespace std; int main (void) { int n; cin >> n; vector vec(n); for (int i=0;i odds, evens; for (int i = 1; i <= n; i += 2) odds.push_back(i); for (int i = n; i >= 2; i -= 2) evens.push_back(i); for (int x : odds) cout << x << " "; for (int x : evens) cout << x << " "; } }; return 0; }