#include <iostream>
#include <fstream>

using namespace std;
ifstream f("cifra.in");
ofstream g("cifra.out");

int t,b,sum,s,x;
int main()
{
f>>t;
sum=1;
x=1;
s=0;
b=1;
if(t==0)g<<"0";
    while(x<=t)
    {
        b=x;
        sum=1;
                while(b>0)
                {
                sum=sum*x;b--;
                }

        x++;
        s=s+sum;
         g<<s%10<<endl;
    }
return 0;
}