#include<stdio.h>
#include<math.h>

int main(){
    int n,originalNum,remainder,result=0,digits=0;
    scanf("%d",&n);
    
    if(n<0){
        printf("Invalid Input");
        return 0;
    }
    originalNum=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(result==originalNum)
    pritnf("Armstrong");
    else 
       printf("Not Armstrong");
       
       return 0;
}