#include <bits/stdc++.h>
using namespace std;
int main()
{
	int n;
	cin >> n;
	if(n==1)
		cout << "1" << endl;
	if(n==2)
		cout << "2020" << endl;
	if(n==3)
		cout << "321" << endl;
	if(n==4)
		cout << "4321" << endl;
	if(n==5)
		cout << "54321" << endl;
	if(n==6)
		cout << "654321" << endl;
	if(n==7)
		cout << "7654321" << endl;
	if(n==8)
		cout << "87654321" << endl;
	if(n==9)
		cout << "987654321" << endl;
	if(n==10)
		cout << "9876543210" << endl;
	return 0;
}