#include<stdio.h>
#include<math.h>
int main()
{
    int n;
    scanf("%d",&n);
    if(n < 0)
    {
        printf("Invalid Input");
    }
    else
    {
        int orginalnum = 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;
    }
    temp /= 10;
    }
    if (sumofpowers == originalnum)
{
        printf("Armstrong\n");
    }
    else
    {
        printf("Not Armstrong");
    }
}
return 0;
}