class summation
{
public void display()
{
int a=5,c=5;
for (int i=5;i>=1;i--)
{
for (int k=a;k>=i;k--)
{
System.out.print(k);
}
for (int j=1;j<=c-1;j++)
{
System.out.print(c);
}
System.out.println();
c=c-1;
}
}
}

---