#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int,int> P;
#define REP(i,n) for(int i=0;i<int(n);i++)


int main(void){
	cin.tie(nullptr);  ios_base::sync_with_stdio(false);
	ll i,j,k;

	ll N;
	cin >> N;

	ll a=1;
	ll ans=1000000000000;
	for(i=1;i<=60;i++){
		a*=2;
		if(a%N==0){
			cout << 1 << endl;
			return 0;
		}
		ll d=a-((a-1)/N*N+1);
		ans=min(ans,d);
	}

	ans+=2;

	cout << ans << endl;



	return 0;
}