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