Scanner scn=new Scanner(System.in) ;
int n=scn.nextInt();
int nsp=n-3;
int nst=1;
int col=n/2;
if(n%2!=0)
{ System.out.println(1);
for(int i=2;i<n;i++)
{
for(int k=1;k<nsp;k++)
{
System.out.print(" “);
}
if(i<=n/2+1)
{for(int j=i;j>=1;j–)
{
System.out.print(” “+j);
}}
else {
for(int t=col;t>=1;t–)
{System.out.print(” “+t);}
}
for(int r=1;r<=nst;r++)
{System.out.print(” “);}
if(i<=n/2+1)
{for(int a=1;a<=i;a++)
{System.out.print(a+” “);}
}
else {for(int d=1;d<=col;d++)
System.out.print(d+” ");
col–;}
if(i<=n/2)
{nst+=2;
nsp-=2;}
else {nst-=2;
nsp+=2;}
System.out.println();
}
for(int o=1;o<=n+1;o++)
{System.out.print(" ");
}
System.out.print(1);
}
else System.out.close();