#include<bits/stdc++.h>
using namespace std;
int a[100][100];
int main(){
	int n;
    cin>>n;
    int x,y;
    int m=1;
    while(m<=n*n){
        if(m==1)
            a[x=1][y=n/2+1]=m++;
        else if(x==1&&y!=n)
            a[x=n][++y]=m++;
        else if(x!=1&&y==n)
            a[--x][y=1]=m++;
        else if(x==1&&y==n)
            a[++x][y]=m++;
        else if(x!=1&&y!=n){
            if(a[x-1][y+1]==0)
                a[--x][++y]=m++;
            else
                a[++x][y]=m++;;
        }
    }
    for(int i=1;i<=n;++i){
        for(int v=1;v<=n;++v)
        {
            cout<<a[i][v]<<" ";
        }
        cout<<endl;
    }
    return 0;
}

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