#include <stdio.h>
int sum(int n){
    while(n>0){
        int d=n%10;
        int sum+=(d*d);
        n/=10;
    }
    return 0;
}

int main() 
{
int n,d,sum;
scanf("%d",&n);
while(n!=1){
    n=sum(n);
    break;
 }
if(n==1){
    printf("Happy number");
  }else{
    printf("Unhappy number");
 }
}