#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;
        while(temp>0)
    {
        int Digit=temp % 10;
        sumofPowers+=pow(Digits,numDigit);
        temp/=10;
    }
    if(sumOfPower==originalNum)
    {
        printf("Amstrong\n");
    }
    else
    {
        printf("Not Amstrong\n")
    }
    }
    return 0;
}