题解 | #参数解析#

while True:
    try:
        s = str(input())
        #print(s)
        o, e = [], ''
        #print(e)
        flag = False
        for i in s:
            if i == '"':
                flag = not flag
            elif i == ' ' and not flag:
                o.append(e)
                e = '' #空字符串
            else:
                e += i
        o.append(e)
        #print(o)
        print(len(o))
        for i in o:
            print(i)
    except:
        break