#include<iostream>
using namespace std;
int main(){
    int n,i,j,s;
    cin>>n;
    int a[2*n+1][2*n+1];
    for(i=0;i<n+1;i++){
        s=n;
        for(j=0;j<n+1;j++){
            a[i][j]=s;
            if(j<i) s--;
        }
        for(j=n+1;j<2*n+1;j++){
            if(j>2*n-i) s++;
            a[i][j]=s;
        }
    }
    for(i=n+1;i<2*n+1;i++){
        s=n;
        for(j=0;j<n+1;j++){
            a[i][j]=s;
            if(j<2*n-i) s--;
        }
        for(j=n+1;j<2*n+1;j++){
            if(j>i) s++;
            a[i][j]=s;
        }
    }
    for(i=0;i<2*n+1;i++){
        for(j=0;j<2*n+1;j++) printf("%2d",a[i][j]);
        cout<<endl;
    }
    return 0;
}

/**************************************************************
	Problem: 1209
	User: panjinyan
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2076 kb
****************************************************************/