#include<stdioh>
#include<math.h>
int main()
{
    int n;
    scanf("%d",&n);
    if(n < 0)
    {
        printf("Invalid Input\n");
    }
    else
    {
        int origina1Num = n;
        int numDigits = 0;
        int temp = n;
        if(temp == 0)
        {
            numdigits = 1;
        }
        else
        {
            while(temp > 0)
            {
                temp /=10;
                numDigits++;
            }
        }
    int sumOfPowers = 0;
    temp = n;
    while (temp > 0)
         {
            int digit = temp % 10;
            sumOfPowers += pow(digit, numDigits);
            temp /=10;
         }
    if (sumOfPowers == originalNum)
       {
        printf("Armstrong\n");   
    }
    else
    {
        printf("Not Armstrong\n");
       }
    }
    return 0;
}    
    
}