while True:
try:
str1=str(input())
str1=str1.replace(' ','\n')

去除双引号内的换行

    e=''
    flag= False
    for i in str1:
        if i=='"':
            flag=not flag
        elif flag==True and i=='\n':
            e+=' '
        else:
            e+=i

去除双引号内的换行

    b=e.count('\n')+1
    print(b)
    print(e)
except:
    break