#!  /usr/bin/python3
# introducao pyhton
lista=[]

for x in range(65,65 +26):
   lista.append(chr(x))
    

dd=lista.pop(0)

txt="carlos eduardo de oliveira pantaleao"

print(txt.upper())

print(txt.lower())

print(txt.replace("e","K"))

print(txt.split("e"))