Device Status Code

Source: Phước Hưng OJ

Version: Phuoc Hung OJ Extended

Problem Statement

A device reports an integer status code ma: 0 means normal operation, 1 low battery, 2 overheating and 3 disconnected. Print the associated status; any other code prints UNKNOWN.

Input

One integer status code ma.

Output

Print exactly OK, LOW_BATTERY, OVERHEAT, DISCONNECTED or UNKNOWN.

Subtasks

• Subtask 1 (20%): 0 <= ma <= 1.
• Subtask 2 (30%): 0 <= ma <= 3.
• Subtask 3 (50%): -1000 <= ma <= 1000.

Examples

Example 1

Input

2

Output

OVERHEAT

Explanation

Code 2 denotes overheating.

Example 2

Input

-1

Output

UNKNOWN

Explanation

-1 is not one of the four defined codes.