#include<cstdio>
#include<cstring>
#include<iostream>
#include<cmath>
#include<ctime>
#include<string>
#include<algorithm>
#include<vector>
#include<queue>
#include<stack>
#include<map>
using namespace std;
typedef long long LL;
const int MR=1e6+10;

int main(){
    LL n;
    cin>>n;
    int ans=0;
    while(n%2==0){
        ans=1;
        n/=2;
    }
    if(ans>1) ans+=2;
    cout<<ans<<endl;
    return 0;
}