public class NumberPyramid{
    public static void printStuff(int iii, int nHeight)
    {
        for(int n = 0; n < (nHeight-iii); n++)
        {
            System.out.print(" ");
        }

        for( int n = 1; n < iii; n++)
        {
            System.out.print(n);
        }

        for(int n = iii; n > 0; n--)
        {
            System.out.print(n);
        }
    }

    public static void main(String[] args){

        int nHeight = Integer.parseInt(args[0]);

        for(int iii = 0; iii <= nHeight; iii++)
        {
            printStuff(iii, nHeight);
            System.out.print("\n");
        }

        for(int iii = nHeight-1; iii >= 1; iii--)
        {
            printStuff(iii, nHeight);
            System.out.print("\n");
        }
    }
}