Classify int a[n] in C90/C99/C11/C17

Source: Phuoc Hung OJ

Version: Phuoc Hung OJ Extended

Problem

Consider int a[n]; where $n$ is a positive run-time value and therefore is not an integer constant expression. This is a variable length array (VLA) when supported. Use the labels NOT_STANDARD, VLA, and OPTIONAL_VLA according to the chapter convention:

$$\text{C90}\to\texttt{NOT\_STANDARD},\quad \text{C99}\to\texttt{VLA},\quad \text{C11/C17}\to\texttt{OPTIONAL\_VLA}.$$

Classify each requested C standard.

Input

The first line contains $Q$. The second line contains $Q$ codes from $\{90,99,11,17\}$.

Output

Print one classification label for each code.

Subtask

Subtask 1 (20 points): $1\le Q\le10$.

Subtask 2 (30 points): $1\le Q\le100$.

Subtask 3 (50 points): $1\le Q\le1000$.

Example

Input

4
90 99 11 17

Output

NOT_STANDARD
VLA
OPTIONAL_VLA
OPTIONAL_VLA

Explanation

C90 has no standard VLA; C99 standardizes VLA; C11 and C17 permit implementations without VLA support.