#include<stdio.h>
#include<math.h>
void checkArmstrong(int n){
    if(n<0){
        printf("Invalid Input\n");
        return;
    }
    int original=n;
    int sum;
    int digits=(int)log10(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 man(){
    int n;
    scanf("%d",&n);
    checkArmstrong(n);
    return 0;
}