#include<bits/stdc++.h>
using namespace std;
#include<atcoder/all>
using namespace atcoder;
using ll = long long;
int n;

void solve(){
	if(n%2==1){
		cout<<2<<endl;
	}else if(__builtin_popcount(n)==1){
		cout<<1<<endl;
	}else{
		cout<<3<<endl;
	}
}

signed main(){
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
	cin >> n;
	solve();
}