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