#include <bits/stdc++.h>

const int N = 5;
using namespace std;

int main() {
    int a[N] = {9, 6, 5, 4, 1};

    for (int i = 0; i < N / 2; i++)
        swap(a[i], a[N - i - 1]);

    for (int i = 0; i < N; i++)
        printf("%4d", a[i]);
    return 0;
}