#! /usr/bin/env python3


import os
from time import sleep

smolbeep = 35
freq = 440
errfreq = 220
farnsadd = 400

letterdict = {
"a":".-",
"b":"-...",
"c":"-.-.",
"d":"-..",
"e":".",
"f":"..-.",
"g":"--.",
"h":"....",
"i":"..",
"j":".---",
"k":"-.-",
"l":".-..",
"m":"--",
"n":"-.",
"o":"---",
"p":".--.",
"q":"--.-",
"r":".-.",
"s":"...",
"t":"-",
"u":"..-",
"v":"...-",
"w":".--",
"x":"-..-",
"y":"-.--",
"z":"--..",
"0":"-----",
"1":".----",
"2":"..---",
"3":"...--",
"4":"....-",
"5":".....",
"6":"-....",
"7":"--...",
"8":"---..",
"9":"----.",
".":".-.-.-",
",":"--..--",
"?":"..--..",
" ":" "
}

def beep(letter):
	if letter in letterdict:
		morse = letterdict[letter]
		for symb in morse:
			if symb == ".":
				os.popen("beep -f "+str(freq)+" -l " + str(smolbeep))
				sleep(smolbeep/1000*2)
			elif symb == "-":
				os.popen("beep -f "+str(freq)+" -l " + str(smolbeep * 3))
				sleep(smolbeep/1000*4)
			elif symb == " ":
				sleep(smolbeep/1000*7)
			else:
				os.popen("beep -f "+str(errfreq)+" -l "+str(smolbeep))
				sleep(smolbeep/1000*2)
	else:
		os.popen("beep -f "+str(errfreq)+" -l "+str(smolbeep * 3))
		sleep(smolbeep/1000*4)

	sleep(smolbeep/1000*2+farnsadd/1000)

def beepline(line):
	for c in line.lower():
		beep(c)

if __name__ == "__main__":
	while(True):
		line = input()
		beepline(line)