#include<bits/stdc++.h>
#define endl "\n"
#define optimize() ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
using namespace std;
int main()
{
    optimize();
    int n;
    cin>>n;
    if(n>=2)
        cout<<'2'<<endl;
    else
        cout<<'0'<<endl;
    return 0;
}