#include <iostream>
using namespace std;

int main(){
    int n;
    cin >> n;
    int dp[n+1];
    dp[0] = 0;
    dp[1] = 1;
    dp[2] = 3;
    for(int i = 3;i <= n;i++){
        dp[i] = (dp[i-1]+2*dp[i-2])%20100529;
    }
    cout << dp[n];
    return 0;
}