#include <iostream>

unsigned int N, a, b, c;

int main() {
	std::cin >> N;
	switch (N % 3) {
	case 0:
		c = 1;
		break;
	case 1:
		b = 1;
		c = 2;
		break;
	case 2:
		a = 1;
		b = 2;
		c = 4;
		break;
	}
	N -= N % 3;
	while (N > 5) {
		a = 2 * (a + c);
		b = 2 * (b + a);
		c = 2 * (c + b);
		a = 2 * (a + c) % 20210108;
		b = 2 * (b + a) % 20210108;
		c = 2 * (c + b) % 20210108;
		N -= 6;
	}
	if (N) {
		a = 2 * (a + c);
		b = 2 * (b + a);
		c = 2 * (c + b) % 20210108;
	}
	std::cout << c;
}