#include<stdio.h>
#include<math.h>
int main()
{
    int n;
    scanf("%d",&n);
    if(n < 0)
    {
        printf("Invalid Input");
        return 0;
    }
        int original = n;
        int Digits = 0;
        int temp = n;
        if(temp == 0)
        digits = 1;
        else
        {
            while (temp > 0)
            {
            Digits++;
            temp /= 10;
        }
        }
        int sum = 0;
        temp = n;
        while (temp > 0)
        {
            int digit = temp % 10;
            sum +=pow(digit, digits);
            temp /= 10;
        }
        if (sum == original)
        printf("Armstrong");
        else
        printf("Not Armstrong");
        return 0;
}