#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;
    sumOpower += pow(digit,  numDigit);
    temp /=10;
}
 printf("Armstrong\n");
}
else
{
    printf("Not Armstrong\n");
}
}
return 0;
}