#include <fstream>

using namespace std;

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

ifstream fin(input);
ofstream fout(output);

int main()
{
    long long unsigned T,N;
    fin>>T;
    fin>>N;
    if(N==1)
            fout<<"1";
    if(N==2)
            fout<<"5";
    if(N==3)
            fout<<"2";
    if(N==4)
            fout<<"8";
    if(N==5)
            fout<<"3";
    return 0;
}