include <iostream>

include <stdio.h>

using namespace std;
int main()
{
int N;
cin>>N;
char c;
cin>>c;
for(int i=0;i<N;i++)
{
cout<<c;
}
cout<<endl;
int s;
s=N*10/2;
if(s%10>=5)
s=s/10+1;
else
s=s/10;
for(int j=0;j<s-2;j++)
{
cout<<c;
for(int i=0;i<N-2;i++)
{
cout<<" ";
}
cout<<c<<endl;
}
for(int i=0;i<N;i++)
{
cout<<c;
}
return 0;
}