题解 | #格式化输出（二）#
格式化输出（二）
https://www.nowcoder.com/practice/3bd78a6de34a447fa49571a03f164fd3
name=input()
print(name.lower())
print(name.upper())
if ' ' in name :
strs = ''
for item in name.split(' '):
strs = strs + f"{item.capitalize()} "
print(strs)
else:
print(name.capitalize())
