#include <stdio.h>
#include <math.h>

int main() {
    int n, original, remainder, digits = 0;
    int sum = 0;
    scanf("%d", &n);
    
    if (n < 0) {
        printf("Invalid Input");
        return 0;
    }
    
    original = n;
    int temp = n;
    while (temp ! = 0) {
        digits++;
        temp /= 10;
    }
    if (digits == 0) digits = 1;
    temp = n;
    while (temp != 0) {
        remainder = temp % 10;
        sum += pow(remainder, digits);
        temp /= 10;
    }
    
    if (sum == original)
       printf("Armstrong");
    else
       printf("Not Armstrong");
       
    return 0;
}