d = "Привет!".upper()
print(d)
e = "Hallo!".replace("a", "@")
print(e)

9481b4b2f24b440fb01e863d8bd44e1c760dcaed
<mask token>

<mask token>
print(d)
<mask token>
print(e)

d = 'Привет!'.upper()
print(d)
e = 'Hallo!'.replace('a', '@')
print(e)

d = "Привет!".upper()
print(d)
e = "Hallo!".replace("a", "@")
print(e)
