// UUID: ce415f94-0865-4556-916e-31aa1aa74f59
#include <bits/stdc++.h>
#include <vector>
using namespace std;

int main() {
	int n; cin >> n;
	vector<pair<int,int>> dp(n + 1);
	dp[0].second = 1;
	dp[1].first = 1;
	dp[1].second = 2;
	for (int i = 2;i <= n;i++) {
		dp[i].first = (dp[i - 1].second + dp[i - 1].first + dp[i - 2].second) % 2023;
		dp[i].second = (2 * dp[i - 1].second + 4 * dp[i - 1].first + 3 * dp[i - 2].second) % 2023;
		}
	cout << dp[n].second;
}