#include<stdio.h>
#include<math.h>
int main()
{
    int n,temp,rem,digits = 0;
    double 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;
}