题解 | #参数解析#

s = input()
s = s.replace(' ','\n')

e = ''
flag = False   # 核心思想是先遍历一遍，用一个bool当做开关，把字符串参数里的空格，换成分割符以外的
for i in s:
    if i == '"':
        flag = not flag  # 取反而不是赋值为False
    elif flag and i == '\n':
        e += ' '
    else:
        e += i
print(e.count('\n')+1)
print(e)