Find Armstrong numbers

#include<stdio.h>
int main()
//Armstrong  numbers
{

    int num,temp,r,sum=0;
    printf("enter any number: ");
    scanf("%d",&num);
    temp=num;
    while(temp!=0){
        r=temp%10;
        sum=sum+r*r*r;
        temp=temp/10;

}
    if (num==sum)
   printf("Armstrong  numbers ");
  else
    printf("not Armstrong numbers ");

    return 0;
}