#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;
}