#include <iostream>
using namespace std;
int irand(int a, int b) {
	return a + rand() % (b - a + 1);
}
int main() {
	int* a;
	int b,x;
	bool flag = 0;
	cin >> b;
	a = new int[b+1];
	int i;
	for (i = 0; i < b; i++) {

		while (1) {
			flag = true;
			x = irand(1, b);
			for (int j = 0; j < i; j++) {
				if (x == a[j]) {
					flag = false;
					break;
				}
			}
			if (flag == true)
				break;
		}
		a[i] = x;
		cout << a[i] << " ";
	}
}