#include<bits/stdc++.h>
using namespace std;
int main(){
freopen("p1729.in","r",stdin);
freopen("p1729.out","w",stdout);
int a[100][100]={0},i,j,k=0,n;
cin>>n;
for(i=1;i<=n;i++){
for(j=1;j<=n+1-i;j++) a[i][j]=i;
for(j=i;j<=n;j++)a[j][n+1-i]=i;
}
for(i=1;i<=n;i++){
for(j=1;j<=n;j++)cout<<setw(3)<<a[j][i];
cout<<endl;
}
fclose(stdin);
fclose(stdout);
return 0;
}
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