Three Alert Priorities

Source: Phước Hưng OJ

Version: Phuoc Hung OJ Extended

Problem Statement

A device reports temperature $t$, pressure $p$, and battery level $b$. Print exactly one message with this priority: HEAT if $t\ge80$; otherwise PRESSURE if $p\ge80$; otherwise BATTERY if $b<20$; otherwise OK. Higher-priority alerts override lower-priority ones.

Input

Three integers $t$, $p$, and $b$ denote temperature, pressure, and battery level, respectively.

Output

Print exactly one of HEAT, PRESSURE, BATTERY, OK.

Subtasks

• Subtask 1 (20 points): All values are in $[0,100]$, with $t<80$ and $p<80$.
• Subtask 2 (30 points): All values are in $[0,100]$, with $t<80$.
• Subtask 3 (50 points): All values are in $[0,100]$.

Examples

Input

90 90 10

Output

HEAT

Explanation

Since temperature $90\ge80$, the highest-priority alert is active. The pressure and battery conditions also hold, but the output is only HEAT.