#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 sumOFpower = 0;
    temp = n;
    while (temp > 0)
    {
    int digit = temp % 10;
    sumOFpower += pow(digit, numDigits);
    temp /=10;
    }
    if(sumOfpower == originalNum)
    {
    printf("Armstrong\n");
    } 
    else
    { 
    printf("Not Armstrong\n");
    }
    }
    return 0;
}