#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,m,a[21][21]={}; cin>>n; for(int k=0;k<=n;k++){ for(int i=k;i<=n;i++) for(int j=k;j<=n;j++) a[i][j]=k; } for(int i=0;i<n;i++){ for(int j=0;j<n;j++) cout<<a[i][j]<<" "; cout<<endl; } return 0; }