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#include <fstream>
#include <algorithm>
using namespace std;
ifstream cin("tablete.in");
ofstream cout("tablete.out");
int a[1001][1001];
int main()
{
int k, n, x=1, i, j;
cin>>n>>k;
if(k%2==0)
{
x=1;
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
{
a[i][j]=x;
x++;
}
}
for(i=1;i<=n;i++)
{
cout<<'\n';
for(j=1;j<=n;j++)
{
cout<<a[i][j]<<" ";
}
}
}
else
{
x=2;
for(i=1;i<=n;i++)
{
for(j=1;j<=n;j++)
{
if(i!=n||j!=1)
{
a[i][j]=x;
x++;
}
else
{
a[i][j]=1;
}
}
}
swap(a[n-1][n],a[n][k]);
swap(a[n][k], a[n][k-1]);
for(i=1;i<=n;i++)
{
cout<<'\n';
for(j=1;j<=n;j++)
{
cout<<a[i][j]<<" ";
}
}
}
return 0;
}