Operation Code with Inner Condition

Source: Phước Hưng OJ

Version: Phuoc Hung OJ Extended

Problem Statement

Given an operation code k and integer x, code 1 prints POS if x>0 and NONPOS otherwise; code 2 prints EVEN for an even x and ODD otherwise; code 3 prints the absolute value of x. Execute only the selected operation.

Input

One line contains integers k and x, in that order.

Output

Print exactly one keyword or integer for the chosen operation.

Subtasks

• Subtask 1 (20%): k = 1 and 0 <= x <= 100.
• Subtask 2 (30%): 1 <= k <= 2 and -100 <= x <= 100.
• Subtask 3 (50%): 1 <= k <= 3 and -100 <= x <= 100.

Examples

Example 1

Input

3 -7

Output

7

Explanation

Code 3 outputs |-7|=7, as a number only.

Example 2

Input

1 0

Output

NONPOS

Explanation

Zero is not positive, so code 1 outputs NONPOS.

Example 3

Input

2 -3

Output

ODD

Explanation

-3 has a nonzero remainder modulo 2, so it is odd.