Morse Code Translator

Morse code is an early digital communication protocol where a horn (or similar device) emits sounds of different durations to represent different English letters. Specifically:

• A dot (represented by a period .) sounds for $1$ unit of time and is called a dit.
• A dash (represented by a hyphen -) sounds for $3$ units of time and is called a dah.
• Pauses between letters last for $3$ time units, and pauses between words last for $7$ time units.

The image below shows the correspondence between Morse code and the English letters.

For instance, converting the Morse code ... --- ... (with spaces separating characters) yields the famous SOS distress signal. In this problem, you are required to write a program to translate received Morse code back into English characters.

Note: In the input, a single space separates Morse codes for characters, and a sequence of three spaces indicates the separation between words.

inputFormat

The input consists of a single line containing the Morse code message. Individual Morse codes for letters are separated by a single space, and words are separated by three spaces.

outputFormat

Output the corresponding English message in uppercase letters.

sample

... --- ...

SOS