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