#include <math.h>

int main() {
    int n, temp, digits = 0;
    int sum = 0;
    scanf("%d", &n);
    if (n < 0) {
        printf("Invalid Input");
        return 0;
    }

    temp = n;
    int num = n;
    while (num > 0) {
        digits++;
        num /= 10;
    }
    num = n;
    while (num > 0) {
        int digit = num % 10;
        sum += pow(digit, digits);
        num /= 10;
    }
    if (sum == n)
        printf("Armstrong");
    else
        printf("Not Armstrong");
}