#include<iostream.h>
#include<conio.h>
void main()
{
int s,sum=0,n,a;
clrscr();
cout<<"\nenter the no.";
cin>>n;
a=n;
while(n!=0)
{
s=n%10;
sum=sum+s*s*s;
n=n/10;
}
if(sum==a)
cout<<"\nit is an armstrong no."<<a;
else
cout<<"\nnot an armstrong no";
getch();
}