#include <fstream>

using namespace std;

ifstream cin("lgput.in");
ofstream cout("lgput.out");

long con=1999999973;

int UltimaCifra(int a, int b)
{
    if(a==1)
        return 1;

    if(b==1)
        return a%10;

    if(b%2==1)
        return (a*UltimaCifra(a%con,b-1))%con;

    return UltimaCifra((a%con)*(a%con),b/2);
}

int main()
{
    int a,b;

    cin>>a>>b;

    cout<<UltimaCifra(a,b);

    return 0;
}