#include<stdio.h>
#include<math.h>
int main()
{
    int n, temp, rem, digits = 0;
    doudle sum = 0;
    scanf("%d",&n);
    if(n < 0){
        printf("Invalid Input");
        return 0;
    }
    temp = n;
    int t =n;
     while (t!= 0){
         t/=10;
         digits++;
        }
        t = n;
        while (t!= 0){
            rem = t % 10;
            sum += pow(rem, digits);
            t/=10;
        }
        if((int)sum ==n)
        printf("Armstrong");
        else
        printf("Not Armstrong");
        
        return 0;
}