题解 | #参数解析#

import sys
for line in sys.stdin:
    input1 = line.strip()
    ll = []
    if '"' in input1:
        input2 = input1.split('"')
        for w in input2:
            if w and (w[-1] == " " or w[0] == " "):
                for k in w.split(" "):
                    if k:
                        ll.append(k)
            elif w:
                ll.append(w)
    else:
        ll = input1.split(" ")
    print(len(ll))  
    print("\n".join(ll))