#include<iostream>
#include<string>
#include<algorithm>
#include<cctype>
#include<set>
#include<bitset>
#include<math.h>
#include<map>
#include<queue>
using namespace std;

int main(){
    int n, r;
    cin >> n;
    r = n % 3;
    if (r == 0) cout << r << endl;
    else if (r == 1) cout << 2 << endl;
    else cout << 1 << endl; 
}