#include <bits/stdc++.h>
    using namespace std;
    #include <ext/pb_ds/assoc_container.hpp>
    using namespace __gnu_pbds;
    
    template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
    template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
    #define rep(i,n) for (int i = 0; i < (n); ++i)

    typedef long long ll;
    typedef unsigned long long ull;
    typedef long double ld;
    using P=pair<ll,ll>;
    using tp=tuple<ll,ll,ll>;
    const int INF=1001001001; 
    const ll INFL=1e18;
    const ll mod=998244353;
    
    void solve(){
        int n;
        cin>>n;
        rep(s,1<<30){
            if(n==1<<s){
                cout<<"1"<<endl;
                return;
            }
        }
        if(n%2==0){
            cout<<3<<endl;
        }else{
            cout<<2<<endl;
        }
    }

    int main(){
        ios_base::sync_with_stdio(false);
        cin.tie(NULL);
        
        solve();
        
        return 0;
    }