#include <iostream>

using namespace std;

typedef unsigned long long int ulli;

int main() {
	const ulli MODNUM = 20210108, LMODNUM3 = MODNUM * 1000, LMODNUM5 = LMODNUM3 * 100;
	ulli a = 2, b = 4, c = 10;
	unsigned int N;
	scanf("%d", &N);

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

		a = a >= LMODNUM5 ? a % LMODNUM3 : a;
		b = b >= LMODNUM5 ? b % LMODNUM3 : b;
		c = c >= LMODNUM5 ? c % LMODNUM3 : c;
	}

	switch (N >= 3 ? N % 3 : N) {
		case 0: printf("%d", c % MODNUM); break;
		case 1: printf("%d", a % MODNUM); break;
		case 2: printf("%d", b % MODNUM); break;
	}
}