#include<bits/stdc++.h>
using namespace std;
int a[10000],b[100][100],n,a1=0,c=0,s=1,h=1,l=1;
int main()
{
    cin>>n;int n1=n,x=1,k,k1;
    
    while(s<n*n)
    {
        k=x,k1=x;
        for(k=x,k1=x;k<n1;k++)
        b[k1][k]=s,s++;
        //for(int i=1;i<=n;i++)cout<<b[1][i]<<" ";
        for(k=x,k1=n1;k<n1;k++)
        b[k][k1]=s,s++;
        k1=n1,k=n1;
        for(k=n1,k1=n1;k>x;k--)
        b[k1][k]=s,s++;
        for(k=x,k1=n1;k1>x;k1--)
        b[k1][k]=s,s++;
        n1--,x++;
    }
    if(n%2!=0)b[n/2+1][n/2+1]=s;
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=n;j++)
        cout<<setw(6)<<b[i][j];
        cout<<endl;
    }
    return 0;
}
//输出是setw(6)

#include<iostream>
#include<iomanip>
using namespace std;
int a[101][101];
int main(){
    ios::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    int n, num = 1;
    cin >> n;
    int p = n*n, q = 0, r = 0;
    while(num <= p){
        for(int ii = 1+r; ii <= n-r; ii++){
            if(num > p)goto finish;
            a[r+1][ii] = num++;
            //cout << num << '*' << endl;
        }
        for(int ii = 2+r; ii < n-r; ii++){
            if(num > p)goto finish;
            a[ii][n-r] = num++;
            //cout << num << '*' << endl;
        }
        for(int ii = n-r; ii >= 1+r; ii--){
            if(num > p)goto finish;
            a[n-r][ii] = num++;
            //cout << num << '*' << endl;
        }
        for(int ii = n-r-1; ii > 1+r; ii--){
            if(num > p)goto finish;
            a[ii][r+1] = num++;
            //cout << num << '*' << endl;
        }
        r++;
        if(num > p)goto finish;//这行非常神奇，没它就陷入死循环，I don't know why.
        //cout << r << '#' << endl;
    }
    finish:
        for(int i = 1; i <= n; i++){
            for(int j = 1; j <= n; j++)
                cout << setw(6) << a[i][j];
            cout << endl;
        }
    return 0;
}