#include #include using namespace std; using namespace atcoder; using ll = long long; using ull = unsigned long long; using Graph = vector >; using mint = modint998244353; const int INF = 1e9; const int MOD = 1e9+7; const ll LINF = 1e+18; #define REP(i, n) for (int i = 0; (i) < (int)(n); ++ (i)) #define REP2(i, s, n) for (int i = (s); i < (int)(n); i++) #define REPB(i,n) for(int i = n-1; (int)i >= 0; --i) #define FOREACH(x,a) for(auto& (x) : (a) #define YESNO(T) if(T){cout<<"YES"< #define VL vector #define VS vector #define VC vector #define VVI vector > #define VVL vector > #define VVC vector > #define VPII vector > #define VPLL vector > #define VPSI vector > template inline void printVec(std::vector v){ REP(i,v.size()){ if(i) std::cout << " "; std::cout << v[i]; } std::cout << std::endl; } template bool chmax(T& a,T b) { if(a < b) { a = b; return true; } return false; } template bool chmin(T& a,T b) { if(a > b) { a = b; return true; } return false; } ll gcd(ll a, ll b){ if(a % b == 0) return b; else return gcd(b, a % b); } ll lcm(ll a, ll b){ return a * b / gcd(a,b); } int main() { cin.tie(0); ios_base::sync_with_stdio(false); ll n; cin >> n; ll m = n; int k = 1; ll cnt = 0; set st; while(1){ if(st.count(k % n)){ break; } if(k >= n){ st.insert(k % n); } k *= 2; } cout << *st.begin() + 1 << endl; return 0; }