#include <bits/stdc++.h>
#include <stdio.h>
// #include <boost/multiprecision/cpp_int.hpp>
// using Bint = boost::multiprecision::cpp_int;
#define ALL(v) (v).begin(), (v).end()
#define OVERLOAD4(_1, _2, _3, _4, name, ...) name
#define REP1(n) for (int i = 0; i < n; i++)
#define REP2(i, n) for (int i = 0; i < n; i++)
#define REP3(i, a, b) for (int i = a; i < b; i++)
#define REP4(i, a, b, c) for (int i = a; i < b; i += c)
#define REP(...) OVERLOAD4(__VA_ARGS__, REP4, REP3, REP2, REP1)(__VA_ARGS__)
#define ll long long
using namespace std;
typedef pair<int, int> P;
typedef pair<ll, ll> LP;
const int dx[8] = {1, 0, -1, 0, 1, -1, -1, 1};
const int dy[8] = {0, 1, 0, -1, 1, 1, -1, -1};
const int INF = 1000000000;
const ll LINF = 1000000000000000000;  // 1e18
const double PI = acos(-1.0);
const double EPS = 1e-10;

template<class T> inline bool chmax(T &a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}
template<class T> inline bool chmin(T &a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}
inline constexpr ll ceil_div(const ll a, const ll b) {
    return (a + b - 1) / b - !!((a + b - 1) % b < 0);
}  // return ceil(a/b)
inline constexpr ll floor_div(const ll a, const ll b) { return a / b - !!(a % b < 0); }  // return floor(a/b)
/*  ----------------------- DEBUG FUNCTION ---------------------------- */
#define DUMPOUT cerr
void dump_function() { DUMPOUT << ' '; }
void dump_function(bool a) { DUMPOUT << a; }
void dump_function(int a) { DUMPOUT << a; }
void dump_function(long long a) { DUMPOUT << a; }
void dump_function(char a) { DUMPOUT << a; }
void dump_function(string &a) { DUMPOUT << a; }
void dump_function(double a) { DUMPOUT << a; }
template<class T> void dump_function(const vector<T> &);
template<class T, size_t size> void dump_function(const array<T, size> &);
template<class T, class L> void dump_function(const pair<T, L> &p);
template<class T, size_t size> void dump_function(const T (&)[size]);
template<class T> void dump_function(const vector<T> &a) {
    if (a.empty()) return;
    dump_function(a[0]);
    for (auto i = a.begin(); ++i != a.end();) {
        DUMPOUT << " ";
        dump_function(*i);
    }
    DUMPOUT << endl;
}
template<class T> void dump_function(const deque<T> &a) {
    if (a.empty()) return;
    dump_function(a[0]);
    for (auto i = a.begin(); ++i != a.end();) {
        DUMPOUT << " ";
        dump_function(*i);
    }
}
template<class T, size_t size> void dump_function(const array<T, size> &a) {
    dump_function(a[0]);
    for (auto i = a.begin(); ++i != a.end();) {
        DUMPOUT << " ";
        dump_function(*i);
    }
}
template<class T, class L> void dump_function(const pair<T, L> &p) {
    DUMPOUT << '(';
    dump_function(p.first);
    DUMPOUT << ",";
    dump_function(p.second);
    DUMPOUT << ')';
}
template<class T> void dump_function(set<T> &x) {
    for (auto e : x)
        dump_function(e), DUMPOUT << " ";
    DUMPOUT << endl;
}
template<class T> void dump_function(multiset<T> &x) {
    for (auto e : x)
        dump_function(e), DUMPOUT << " ";
    DUMPOUT << endl;
}
template<class T, size_t size> void dump_function(const T (&a)[size]) {
    dump_function(a[0]);
    for (auto i = a; ++i != end(a);) {
        DUMPOUT << " ";
        dump_function(*i);
    }
}
template<class T> void dump_function(const T &a) { DUMPOUT << a; }
int dump_out() {
    DUMPOUT << '\n';
    return 0;
}
template<class T> int dump_out(const T &t) {
    dump_function(t);
    DUMPOUT << '\n';
    return 0;
}
template<class Head, class... Tail> int dump_out(const Head &head, const Tail &...tail) {
    dump_function(head);
    DUMPOUT << ' ';
    dump_out(tail...);
    return 0;
}

#ifdef DEBUG_
#define dump(x)                                                                                                        \
    DUMPOUT << #x << ": ";                                                                                             \
    dump_function(x);                                                                                                  \
    DUMPOUT << endl;
void dumps() { }
template<class T> void dumps(const T &t) {
    dump_function(t);
    DUMPOUT << " ";
}
template<class Head, class... Tail> void dumps(const Head &head, const Tail &...tail) {
    dump_function(head);
    DUMPOUT << ' ';
    dump_out(tail...);
}
#else
#define dump(x)
template<class... T> void dumps(const T &...) { }
#endif
/*  ----------------------- DEBUG FUNCTION ---------------------------- */

template<int MOD> struct Fp {
    long long val;
    constexpr Fp(long long v = 0) noexcept : val(v % MOD) {
        if (val < 0) val += MOD;
    }
    constexpr int getmod() const { return MOD; }
    constexpr Fp operator-() const noexcept { return val ? MOD - val : 0; }
    constexpr Fp operator+(const Fp &r) const noexcept { return Fp(*this) += r; }
    constexpr Fp operator-(const Fp &r) const noexcept { return Fp(*this) -= r; }
    constexpr Fp operator*(const Fp &r) const noexcept { return Fp(*this) *= r; }
    constexpr Fp operator/(const Fp &r) const noexcept { return Fp(*this) /= r; }
    constexpr Fp &operator+=(const Fp &r) noexcept {
        val += r.val;
        if (val >= MOD) val -= MOD;
        return *this;
    }
    constexpr Fp &operator-=(const Fp &r) noexcept {
        val -= r.val;
        if (val < 0) val += MOD;
        return *this;
    }
    constexpr Fp &operator*=(const Fp &r) noexcept {
        val = val * r.val % MOD;
        return *this;
    }
    constexpr Fp &operator/=(const Fp &r) noexcept {
        long long a = r.val, b = MOD, u = 1, v = 0;
        while (b) {
            long long t = a / b;
            a -= t * b, swap(a, b);
            u -= t * v, swap(u, v);
        }
        val = val * u % MOD;
        if (val < 0) val += MOD;
        return *this;
    }
    constexpr bool operator==(const Fp &r) const noexcept { return this->val == r.val; }
    constexpr bool operator!=(const Fp &r) const noexcept { return this->val != r.val; }
    friend constexpr istream &operator>>(istream &is, Fp<MOD> &x) noexcept {
        is >> x.val;
        x.val %= MOD;
        if (x.val < 0) x.val += MOD;
        return is;
    }
    friend constexpr ostream &operator<<(ostream &os, const Fp<MOD> &x) noexcept { return os << x.val; }
    friend constexpr Fp<MOD> modpow(const Fp<MOD> &r, long long n) noexcept {
        if (n == 0) return 1;
        auto t = modpow(r, n / 2);
        t = t * t;
        if (n & 1) t = t * r;
        return t;
    }
    friend constexpr Fp<MOD> modinv(const Fp<MOD> &r) noexcept {
        long long a = r.val, b = MOD, u = 1, v = 0;
        while (b) {
            long long t = a / b;
            a -= t * b, swap(a, b);
            u -= t * v, swap(u, v);
        }
        return Fp<MOD>(u);
    }
};

template<class T> struct BiCoef {
    vector<T> fact_, inv_, finv_;
    constexpr BiCoef() { }
    constexpr BiCoef(int n) noexcept : fact_(n, 1), inv_(n, 1), finv_(n, 1) { init(n); }
    constexpr void init(int n) noexcept {
        fact_.assign(n, 1), inv_.assign(n, 1), finv_.assign(n, 1);
        int MOD = fact_[0].getmod();
        for (int i = 2; i < n; i++) {
            fact_[i] = fact_[i - 1] * i;
            inv_[i] = -inv_[MOD % i] * (MOD / i);
            finv_[i] = finv_[i - 1] * inv_[i];
        }
    }
    constexpr T nCr(int n, int k) const noexcept {
        if (n < k || n < 0 || k < 0) return 0;
        int MOD = fact_[0].getmod();
        if (n < MOD) return fact_[n] * finv_[k] * finv_[n - k];

        // Lucasの定理
        T ret = 1;
        while (n || k) {
            int _n = n % MOD, _k = k % MOD;
            n /= MOD;
            k /= MOD;
            ret *= nCr(_n, _k);
        }
        return ret;
    }
    constexpr T nPr(int n, int k) const noexcept {
        if (n < k || n < 0 || k < 0) return 0;
        return fact_[n] * finv_[n - k];
    }
    constexpr T nHr(int n, int k) const noexcept {
        if (n <= 0 || k < 0) return 0;
        return nCr(n + k - 1, k);
    }
    constexpr T fact(int n) const noexcept {
        if (n < 0) return 0;
        return fact_[n];
    }
    constexpr T inv(int n) const noexcept {
        if (n < 0) return 0;
        return inv_[n];
    }
    constexpr T finv(int n) const noexcept {
        if (n < 0) return 0;
        return finv_[n];
    }
};

/* ----------------------------- MOD ----------------------------------- */
const int MOD = 1000000007;
const int MOD2 = 998244353;
using mint = Fp<MOD2>;
BiCoef<mint> bc;
// using vec = vector<int>;
// using mat = vector<vec>;
/* ----------------------------- MOD ----------------------------------- */

/*  ----------------------- AtCoder Library ---------------------------- */
// #include <atcoder/all>
// using namespace atcoder;
/*  ----------------------- AtCoder Library ---------------------------- */

void solve() {
    int N;
    cin >> N;
    REP(i, 31) if (N == (1 << i)) {
        cout << 1 << endl;
        return;
    }
    if (N & 1) cout << 2 << endl;
    else cout << 3 << endl;
}

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    solve();
    // int T;
    // cin >> T;
    // REP(t, T) solve();
}