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

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

int main(){
    int n;
    scanf("%d", &n);
    checkArmstrong(n);
    return 0;
}