using System;
public class Program
{
public static void Main()
int i,s, j, k;
for(i=1;i<=5;i++)
for(s=5;s>i;s--)
Console.Write(" ");
}
for(j=1;j<=i;j++)
Console.Write(j);
for(k=j-2;k>=1;k--)
Console.Write(k);
Console.WriteLine();
for(i=4;i>=1;i--)