#include <iostream>
#include <cmath>

using namespace std;

int main()
{
    int v;
      int sx,d,sy;
    double r;
    cin >>r;
    sx=r;
    sy=r;
    cin>>v;
    int k=0;
    int z=2*v-1;

    for(int y=0;y<=r;y++)
    {
        for(int x=0;x<=2*r;x++)
        {
            d=sqrt(pow(sx-x,2)+pow(sy-y,2));
            if(d<=r)
                cout<<"*";
            else
                cout<<" ";
        }
        cout << endl;
    }
    while(k<v)
        {
            int x=0;
            while (x<k)
            {
                cout<<" ";
                x++;
            }
            x=0;
            while(x<z)
            {
            cout<<"*";
            x++;
             }
        z=z-2;
        cout<<endl;
        k++;

        }

    return 0;
}