#include <iostream>

int main()
{
    std::cin.sync_with_stdio(false);
    std::cin.tie(nullptr);

    unsigned int N;
    std::cin >> N;

    unsigned long long int a = 2;
    unsigned long long int b = 4;
    unsigned long long int c = 10;

    for (int n = 3; n < N; n += 3)
    {
        a = 2 * (c + a);        
        b = 2 * (a + b);        
        c = 2 * (b + c);        

        if (c >= 10105054000000000) {
            a %= 20210108;
            b %= 20210108;
            c %= 20210108;
        }
    }

    if (b > a && b > c)
        std::cout << b % 20210108;
    else if (c > b && c > a)
        std::cout << c % 20210108;
    else if (a > c && a > b)
        std::cout << a % 20210108;
}