#include <iostream>

using namespace std;

int main()
{
    int n,i,j,a[25][25];
    cin>>n;
    for(i=1;i<=n;i++){
        for(j=1;j<=n;j++){
            a[i][j]=i*j%10;
            cout<<a[i][j]<<" ";
        }
        cout<<endl;
    }
    return 0;
}