#include<bits/stdc++.h>

#include <boost/multiprecision/cpp_int.hpp>
typedef boost::multiprecision::cpp_int xll;

using namespace std;
typedef unsigned int uint;
typedef long long int ll;
typedef unsigned long long int ull;

#define debugv(v) printf("L%d %s => ",__LINE__,#v);for(auto e:v){cout<<e<<" ";}cout<<endl;
#define debugm(m) printf("L%d %s is..\n",__LINE__,#m);for(auto v:m){for(auto e:v){cout<<e<<" ";}cout<<endl;}
#define debuga(m,w) printf("L%d %s is => ",__LINE__,#m);for(int x=0;x<(w);x++){cout<<(m)[x]<<" ";}cout<<endl;
#define debugaa(m,w,h) printf("L%d %s is..\n",__LINE__,#m);for(int y=0;y<(h);y++){for(int x=0;x<(w);x++){cout<<(m)[x][y]<<" ";}cout<<endl;}
#define ALL(v) (v).begin(),(v).end()
#define BIGINT 0x7FFFFFFF
#define E107 1000000007
void printbit(int u){if(u==0)cout<<0;else{int s=0,k=0;for(;0<u;u>>=1,k++)s=(s<<1)|(u&1);for(;0<k--;s>>=1)cout<<(s&1);}}

#define TIME chrono::system_clock::now()
#define MILLISEC(t) (chrono::duration_cast<chrono::milliseconds>(t).count())

template<typename T1,typename T2>
ostream& operator <<(ostream &o,const pair<T1,T2> p){o<<"("<<p.first<<":"<<p.second<<")";return o;}

int m,n;

bool checked[10];
int checker;

template<typename T>
T gcd(T m,T n){
    if (m < n) return gcd(n,m);
    T t;
    while (n>0){
        t = m % n;
        m = n;
        n = t;
    }
    return m;
}

int main(){
    int i,j,k,l;
    
    string str;
    cin >> str;
    
    for (i = 0;i<str.size();i++){
        k = (int)(str[i]-'0');
        if (!checked[k]){
            checked[k]=true;
            if (9<++checker) break;
        }
    }
    if (checker == 1){
        cout << str << endl;
        return 0;
    }
    
    int d = 0;
    
    for (i=0;i<9;i++){
        if (!checked[i]) continue;
        for (j=i+1;j<10;j++){
            if (!checked[j]) continue;
            d = gcd(d,9*(j-i));
        }
    }
    xll res(str);
    
    cout << gcd(res,xll(d)) << endl;
    

    return 0;
}