#include "stdio.h"

int main() {

	typedef unsigned long long int ulli;
	const ulli MN = 20210108, LMN3 = MN * 1000, LMN5 = LMN3 * 100;
	ulli a = 2, b = 4, c = 10;

	typedef unsigned int NT; NT N;
	scanf("%d\n", &N);

    for (; N > 3; N -= 3) {
		a = 2 * (c + a);
		b = 2 * (a + b);
		c = 2 * (b + c);

		if (c >= LMN5) {
			c %= LMN3;
			if (b >= LMN5) {
				b %= LMN3;
				if (a >= LMN5)
					a %= LMN3;
			}
		}
	}

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