#include<bits/stdc++.h>
using namespace std;
#define int long long
void solve()
{
	int n; cin>>n;
	if(n>=2)
	{
		cout<<2<<endl;
	}
	else cout<<0<<endl;

}
int32_t main()
{
    int t; 
    // cin>>t;
    t=1;
    while(t--)
    {
    	solve();
    }
	return 0;
}