#include<iostream>
#include<iomanip>
using namespace std;
int main(){
short a[100][100]={0},i,j,k=0,n;
cin>>n;
for(k=1;k<=n;k++){
for(i=1;i<=k;i++)a[i][n+1-k]=k;
for(j=n+1-k;j<=n;j++)a[k][j]=k;
}
for(i=1;i<=n;i++){
for(j=1;j<=n;j++)cout<<setw(3)<<a[j][i];
cout<<endl;
}
return 0;
}
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