#include<iostream>
using namespace std;
long long a[300][300],n,m,b,c;
int main()
{
    cin>>n;
    m=1;b=(n+1)/2;
    a[m][b]=1;
    c=1;
    for(c=2;c<=n*n;c++)
    {
        bool flag=0;
        if(m>=2)
        {
            m--;
            if(b+1<=n)n++;
            else n=1;
            if(a[m][n]==0){a[m][n]=c;flag=1;}
        }
        else
        {
            m=n;
            if(b+1<=n)n++;
            else n=1;
            if(a[m][n]==0){a[m][n]=c;flag=1;}
        }
        if(flag==0)
        {
            if(m!=n)m++;
            else m=1;
            a[m][b]=c;
        }
    }
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=n;j++)
        {
            cout<<a[i][j]<<' ';
        }
        cout<<endl;
    }
    return 0;
}