#include<fstream>

using namespace std;

#define input "fts.in "
#define output "fts.out"

ifstream fin (input);
ofstream fout (output);
int main ()
{
    long long unsigned n,S,i,nr,p,l;
    fin>>n;
    S=0;
    for(i=1;i<=n;i++)
    {fin>>nr;
    p=1;
    for(l=1;l<=i;l++)
    p*=i;
                     S=S+p;
                     fout<<S%10;
                     fout<<endl;
                     }
                     return 0;
                     }