#line 1 "a.cpp"
#pragma region Macros
#include <bits/stdc++.h>
using namespace std;
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;
}
#ifdef DEBUG
template <class T, class U>
ostream &operator<<(ostream &os, const pair<T, U> &p) {
    os << '(' << p.first << ',' << p.second << ')';
    return os;
}
template <class T> ostream &operator<<(ostream &os, const vector<T> &v) {
    os << '{';
    for(int i = 0; i < (int)v.size(); i++) {
        if(i) { os << ','; }
        os << v[i];
    }
    os << '}';
    return os;
}
void debugg() { cerr << endl; }
template <class T, class... Args>
void debugg(const T &x, const Args &... args) {
    cerr << " " << x;
    debugg(args...);
}
#define debug(...)                                                             \
    cerr << __LINE__ << " [" << #__VA_ARGS__ << "]: ", debugg(__VA_ARGS__)
#define dump(x) cerr << __LINE__ << " " << #x << " = " << (x) << endl
#else
#define debug(...) (void(0))
#define dump(x) (void(0))
#endif

struct Setup {
    Setup() {
        cin.tie(0);
        ios::sync_with_stdio(false);
        cout << fixed << setprecision(15);
    }
} __Setup;

using ll = long long;
#define OVERLOAD3(_1, _2, _3, name, ...) name
#define ALL(v) (v).begin(), (v).end()
#define RALL(v) (v).rbegin(), (v).rend()
#define REP1(i, n) for(int i = 0; i < (n); i++)
#define REP2(i, a, b) for(int i = (a); i < int(b); i++)
#define REP(...) OVERLOAD3(__VA_ARGS__, REP2, REP1)(__VA_ARGS__)
#define UNIQUE(v) sort(ALL(v)), (v).erase(unique(ALL(v)), (v).end())
const int INF = 1 << 30;
const ll LLINF = 1LL << 60;
constexpr int MOD = 1000000007;
constexpr int MOD2 = 998244353;
const int dx[4] = {1, 0, -1, 0};
const int dy[4] = {0, 1, 0, -1};

void Case(int i) { cout << "Case #" << i << ": "; }
int popcount(int x) { return __builtin_popcount(x); }
ll popcount(ll x) { return __builtin_popcountll(x); }
#pragma endregion Macros

#line 1 "/home/siro53/kyo-pro/compro_library/math/pollad-rho.hpp"
struct FastFactorize {
    ll mul(ll a, ll b, ll c) { return (__int128)a * b % c; }
    ll power(ll a, ll b, ll mod) {
        ll res = 1;
        while(b) {
            if(b & 1) { res = mul(res, a, mod); }
            a = mul(a, a, mod);
            b >>= 1;
        }
        return res;
    }
    bool isPrime(ll n) {
        if(!(n & 1) && n != 2) { return false; }
        ll d = n - 1;
        int s = __builtin_ctzll(d);
        d >>= s;
        vector<int> A;
        if(n <= 1000000000) {
            A = {2, 3, 5, 7};
        } else {
            A = {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37};
        }
        for(int a : A) {
            ll p = power(a, d, n);
            int i = s;
            while(p != 1 && p != n - 1 && a % n && (--i)) { p = mul(p, p, n); }
            if(p != n - 1 && i != s) { return false; }
        }
        return true;
    }
    ll rho(ll n) {
        auto f = [&](ll a) { return mul(a, a, n) + 1; };
        ll x = 0, y = 0, p = 2, q;
        int i = 1, t = 0;
        while((t++) % 40 || gcd(p, n) == 1) {
            if(x == y) {
                x = ++i;
                y = f(x);
            }
            if(q = mul(p, abs(y - x), n)) { p = q; }
            x = f(x);
            y = f(f(y));
        }
        return gcd(p, n);
    }
    vector<ll> factor(ll n) {
        if(n == 1) { return {}; }
        if(isPrime(n)) { return {n}; }
        ll a = rho(n);
        assert(a != n && a != 1);
        auto l = factor(a), r = factor(n / a);
        l.insert(l.end(), r.begin(), r.end());
        return l;
    }
    // 未verify, バグってるかも
    vector<ll> divisor(ll n) {
        vector<ll> res;
        auto v = factor(n);
        map<ll, int> cnt;
        for(const ll &a : v) cnt[a]++;
        sort(ALL(v));
        v.erase(unique(ALL(v)), v.end());
        int sz = int(v.size());

        auto dfs = [&](auto &&dfs, int d, ll now) -> void {
            if(d == sz) {
                res.emplace_back(now);
                return;
            }
            ll nxt = now;
            dfs(dfs, d + 1, nxt);
            REP(i, cnt[v[d]]) {
                nxt *= v[d];
                dfs(dfs, d + 1, nxt);
            }
        };

        dfs(dfs, 0, 1);
        sort(ALL(res));
        return res;
    }
};
#line 76 "a.cpp"
FastFactorize f;

int main() {
    string s;
    cin >> s;
    int N = s.size();
    ll ans = 0;
    REP(mask, 1 << (N-1)) {
        ll sum = 0;
        ll now = s[0] - '0';
        REP(i, 1, N) {
            if(mask >> (i-1) & 1) {
                sum += now;
                now = s[i] - '0';
            } else {
                now = now * 10 + (s[i] - '0');
            }
        } 
        sum += now;
        debug(sum);
        if(sum >= 2 and f.isPrime(sum)) ans++;
    }
    cout << ans << endl;
}