#include <iostream>

#include<windows.h>
using namespace std;
int n,s,ogl,c;
int main()
{
    cin>>n;
    do
    {
        system("cls");
        cout<<"1.Palindrom"<<endl;
        cout<<"2.Calculati numarul de cifre"<<endl;
        cout<<"3.Afisati divizorii numarului"<<endl;
        cout<<"4.Produsul cifrelor"<<endl;
        cout<<"Alege:";
        cin>>s;
        switch(s)
        {
        case 1 :
        {
            system ( "cls");
            cin>>n;
            ogl=0;
            c=n;
            while(c>0)
            {
                ogl=ogl*10 + c%10;
                c=c/10;
            }
            if(ogl==n)
                cout<<n<<"e palindrom";
            else
                cout<<n<<"nu e palindrom";
            break;

        }


        case 2 :
        {
            system ("cls");
            cin>>n;
            int nr=0;
            while(n>0)
            {
                nr=nr+1;
                n=n/10;
            }
            cout<<"numarul de cifre="<<nr;
            break;

        }

        case 3 :
        {
            system ("cls");
            cin>>n;
            for(int d=1; d<=n; d++)
            {
                if(n%d==0)
                    cout<<d;
            }
            break;
        }

        case 4 :
        {
            system ( "cls");
            cout<<"Produdul cifrelor imapre";
            int z,p=1,ok=0;
            cin>>n;
            while(n>1)
            {
                z=n%10;
                if(z%2==1)
                {
                    p=p*z;
                    ok=1;
                }
            }
            n=n/10;
            if(ok==0)
            {
                cout<<"nu exista cfre impare ";
                else
                    cout<<p;
            }
            break;

        }

        case 4 :
            {
                system ("cls")
                cout<<"Produsul cifrelor pare";
                p=1;
                ok=0;
                while(n>1)
                {
                    z=n%10;
                    if(z%2==0)
                    {
                        p=p*z;
                        ok=1;
                    }
                }
                n=n/10;
                if(ok==0)
                {
                    cout<<"nu exista cifre pare";
                    else
                        cout<<p;
                }
                break;

                }
                //default:cout<<"Eroare";
            }
            cout<<endl;
            system ("pause");

          }while(s);
          return 0;
}