Grouping Switch Cases

Source: Phước Hưng OJ

Version: Phuoc Hung OJ Extended

Problem Statement

The days of the week are encoded by integers k from 1 (Monday) to 7 (Sunday). Codes 1–5 denote working days and codes 6–7 denote days off.

Input

One integer k between 1 and 7.

Output

Print WORK for codes 1 through 5 and REST for codes 6 and 7.

Subtasks

• Subtask 1 (20%): 1 <= k <= 3.
• Subtask 2 (30%): 1 <= k <= 5.
• Subtask 3 (50%): 1 <= k <= 7.

Examples

Example 1

Input

5

Output

WORK

Explanation

Code 5 is a working day.

Example 2

Input

7

Output

REST

Explanation

Code 7 belongs to the rest group.