#include<stdio.h>
#include<math.h>
int isArmstrong(int n){
    if(n<0){
        return-1;
    }
    int original_n=n;
    int temp=n;
    int digits=0;
    do{
        temp/=10;
        digits++;
    }
    while(temp!=0);
    long long sum=0;
    temp=n;
    while(temp!=0){
        int remainder=temp%10;
        sum+=(long long)pow(remainder,digits);
        temp/10;
    }
    if(sum==original_n){
        return 1;
    }else{
        return 0;
    }
}
int main(){
    int n;
    if(scanf("%d",&n)!=1){
        printf("Invalid Input\n");
        return 1;
    }
    int result=isArmstrong(n);
if(result==-1){
    printf("Invalid Input\n");
}else if(result==1){
    printf("Armstrong\n");
}else{
    printf("Not Armstrong\n");
}
return 0;
}