#include #include using namespace std; using namespace atcoder; using ll = long long; using ld = long double; int n, a[2020]; int main() { cin >> n; for (int i = 0; i < n; i++) cin >> a[i]; for (int i = 1; i < 2 * n - 3; i++) { for (int p = 0; p < n; p++) { for (int q = p + 1; q < n; q++) { if (p + q == i) { if (a[p] > a[q]) swap(a[p], a[q]); } } } } for (int i = 0; i < n; i++) cout << a[i] << " \n"[i == n - 1]; return 0; }