full_name = "Zhang Yuechuan"
print(full_name.title())
print(full_name.upper())
print(full_name.lower())

f4082915bcc348bcfc4ad72d410f977f0ce74bfe
<mask token>

<mask token>
print(full_name.title())
print(full_name.upper())
print(full_name.lower())

full_name = 'Zhang Yuechuan'
print(full_name.title())
print(full_name.upper())
print(full_name.lower())

full_name = "Zhang Yuechuan"
print(full_name.title())
print(full_name.upper())
print(full_name.lower())
