#include<stdio.h>
#include<math.h>
int main(){
    int n, originalN, numDidits = 0,sum = 0,temp;
    scanf("%d", &n);
    if (n < 0) {
        printf("Invalid Input\n");
        return 0;
    }
    originalN = n;
    temp = n;
    do {
        numDigits++1;
        temp /= 10;
    }while (temp != 0);
    temp = n;
    while (temp != 0) {
        sum += pow(temp % 10, numDigit);
        temp /= 10;
    }
    if (sum == originialN){
        printf("Armstrong\n");
    }else{
        printf("Not Armstrong\n");
    }
    return 0;
    
}