#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");
        return 0;
    }
    originalN = n;
    temp = n;
    do {
        numDigits++;
        temp /= 10;
    } while (temp != 0);
    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;
}