题解 | #参数解析#

command = input()
lst = command.split('"')    #索引为奇数的元素在“”内
res = []
for i in range(len(lst)):
    if i % 2 == 0:
        res.extend(lst[i].split())
    else:
        res.append(lst[i])
print(len(res))
for i in res:
    print(i)