#include <iostream>
using namespace std;
int main()
{
int n, result;
int zero_count=0;
int nine_count=0;
cout << "Input a number: ";
cin >> n;
while(n>0)
{
if (n%10 == 0)
zero_count++;
else if (n%10 == 9)
nine_count++;
n /= 10;
}
nine_count > zero_count ? result=9 : result=0;
cout << result << endl;
}
