pb27

#include <iostream>

using namespace std;// ||sau

int main() {
   unsigned p=1;
    unsigned n,cn,uc;
    cout<<"n=";cin>>n;
    cn=n;
    n/=10;

    while (n!=0) {
        p*=10;
        n/=10;
    }

    n=cn%p;
    cout<<n/10;
return 0;
}