#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;
    }
    tem = 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;
}