# 消息

message = 'tom jackson';
print(message)

message = message.title();
print(message)

message = message.upper();
print(message);

message = message.lower();
print(message);

note = 'Albert Einstein once said, "A person who never made a mistake never tried anything new."'
print(note)

message = note;
print("message "+message)

name = ' lily '

print(name.lstrip())
print(name.rstrip())
print(name.strip())
