"""
The letter: a becomes: 4
The letter: b becomes: 8
The letter: e becomes: 3
The letter: l becomes: 1
The letter: o becomes: 0
The letter: s becomes: 5
The letter: t becomes: 7
"""

text = input('Enter some text: ')
leet_text = text.replace('a', '4').replace('b', '8').replace('e', '3').replace('l', '1').replace('o', '0').replace('s', '5').replace('t', '7')
print(leet_text)

