str1 = 'Beautiful is better than ugly'
str2 = 'Explicit is better than implicit'
str3 = 'Simple is better than complex'
str4 = 'Complex is better than complicated'
str5 = 'Readability counts'

print(str1.upper(),'\n', str2.upper(),'\n', str3.upper(),'\n', str4.upper(),'\n', str5.upper())
print()

print(str1.lower(),'\n', str2.lower(),'\n', str3.lower(),'\n', str4.lower(),'\n', str5.lower())




