#include<stdio.h>
#include<math.h>
int main(){
    int n, original, remainder, digits =0;
    double result = 0.0;
    scanf("%d", &n);
    if(n < 0){
        printf("Invalid Input");
        retutn 0;
    }
        original = n;
        int temp = n;
        while (temp !=0){
            temp /=10;
            digits++;
            
        }
        temp = n;
        while(temp !=0) {
            remainder = temp %10;
            result =+pow(remainder, digits);
            temp /= 10;
        }
            if((int)result == original)
            printf("Armstrong");
            else
            printf("Not Armstrong");
            return 0;
}