#include<stdio.h>
#include<math.h>
void checkArmstrongI(int n){
    if(n<0){
        printf("invalid input\n");
        return ;
    }
    
    int original = n;
    int sum;
    int digits = (int)log(n) + 1;
    
    while (n !=0){
        int remainder = n%10;
        sum += (int)pow(remainder, digits);
        n/=10;
    }
    
    if(sum == original)
    printf("armstrong\n");
    else
    printf("Not Armstrong\n");
}

int main(){
    int n;
    scanf("%d",&n);
    checkarmstrong(n);
    return 0;
}