#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 (sumOfPowers == originalNum)
{
    printf("Armstrong\n");
}
else
{
    printf("Not Armstrong\n");
}
}
return 0;
}
}
}
}