#include<fstream>
using namespace std;
ifstream cin("cifra.in");
ofstream cout("cifra.out");
int t, n, s, i, a, b;
int main()
{cin>>t>>n;
s=0;
for(i=1;i<=t;i++)
	{a=1;
	for(b=1;b<=n;b++)
		a=a*n;
	s=s+a;
	cout<<s%10<<"\n";
	cin>>n;
	}
return 0;
}