#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int n; cin>>n; int a[n+1][n+1],f=n; for(int i=1;i<=n;i++){ for(int j=1;j<=n;j++){a[n+1-i][n+1-j]=f; a[n+1-j][n+1-i]=f; }f--; } for(int i=1;i<=n;i++){ for(int j=1;j<=n;j++){ cout<<a[i][j]<<' '; }cout<<endl; } return 0; }