#include <stdio.h>
int main()
{
    int n;
    if (scanf("%d", &n) != 1) {
        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;
}