#include <iostream>
#include <cstdint>

using namespace std;

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

	uint32_t N;
	cin >> N;

	switch (N % 3)
	{
	case 0:
		cout << "0\n";
		break;

	case 1:
		cout << "2\n";
		break;

	case 2:
		cout << "1\n";
		break;
	}

	return 0;
}