Training Site

Input: Standard Input (stdin)
Output: Standard Output (stdout)
Memory limit: 64 megabytes
Time limit: 1.0 seconds

Plantain is a weed found on farms. If the percentage of plantain is low, the farm is considered healthy - suitable for crop growth the grazing by live stock. A farmer takes readings each year to determine the plantain saturation (as a percentage) of some paddocks on their farm. Your task is to process the plantain saturation data collected from the past three years and determine if a farm is healthy or unhealthy. If the crops are unhealthy, you must determine if the farmer should resow their land.

• If the average (arithmetic mean) plantain saturation reading is $\ge 12\%$ for each of the past three years then the farm is deemed to be unhealthy.
• If the farm is unhealthy AND 50% or more of paddock readings for the most recent year have plantain saturation $\ge 25\%$, then the farmer should resow their land.
• A farm is healthy for all other situations.

## Input

The first line will contain a single integer, $N$, the number of readings taken in the most recent year ($1 \le N \le 200$). The second line will contain $N$ space-separated integers, the plantain saturation (as a percentage) for each paddock sampled that year. Each saturation reading will be an integer between 0 and 100 (inclusive).

This input format is repeated for the data collected in the two prior years. $N$ might be different for each year.

## Output

You should output a single line containing either healthy, unhealthy, or resow, based on the above criteria.

• Subtask 1 (40%): It is guaranteed that the farm will always be either healthy or unhealthy.
• Subtask 2 (60%): No further restrictions apply.
• ### Sample Input 1

3
12 12 12
8
12 12 12 12 12 12 12 12
2
12 12


### Sample Output 1

unhealthy