#include <iostream>

using namespace std;

int main()
{int n, k,i,S=0, x, y;
cin>>n>>k;
for (i=1; i<=n; i++)
{ y=x;
    for(x=1; x<=k; x++)
        {y=y*i;

    }
    S=S+y;
}


    cout << S;
    return 0;
}