#include<stdio.h>
#include<stdio.h>
int main(){
    int n, oringinal, remainder, digits =0;
    double result = 0.0;
    scanf("%d", &n);
    if(n < 0){
    printf("Invalid input");
    return 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;
}