#include<stdio.h>
#include<math.h>
int main(){
    int n, originalN, numDigits = 0, sum=0,temp;
    scanf("%d",&n);
    if (n < 0){
        printf("Invalid Input\n");
        return 0;
    }
    originalN=n;
    temp = n;
    do {
        numDigits++;
        temp /= 10;
    } while(temp != 10);
    temp=n;
    while (temp != 0){
        sum += pow(temp % 10, numDigits);
        temp /= 10;
    }
    if (sum == originalN){
        printf("Armstrong\n");
    } else {
        printf("Not Armstrong\n");
    }
    return 0;
}