# include<iostream> using namespace std; int main(){ int n; cin>>n; int a[n+1][n+1]; for(int i=1;i<=n/2+1;i++){ for(int j=i;j<=n-i+1;j++){ for(int k=i;k<=n-i+1;k++) a[j][k]=i; } } for(int i=1;i<=n;i++){ for(int j=1;j<=n;j++) cout<<a[i][j]<<" "; cout<<endl; } return 0; }