题解 | #参数解析#

data = input()
index = []
count = 0
for i in data:
    if i == '"':
        index.append(count)
    count += 1
if index:
    new_s = data[:index[0]] + '?' + data[index[1]+1:]   
    new_s = new_s.split(' ')
    print(len(new_s))
    for i in new_s:
        if i =='?':
            print(data[index[0]+1:index[1]])
        else:
            print(i)
else:
    new_s = data.split(' ')
    print(len(new_s))
    for i in new_s:
        print(i)