#include <iostream>

#include <sstream>

#include<fstream>

#include<vector>

#include<string>

using namespace std;

int main()

{

    ifstream input("1.txt");

    string line;

    vector<string> vec;

    string tmp;

    while(getline(input,line))

    {

        vec.push_back(line);

    }

    for(auto v:vec)

    {

        cout<<v<<endl;

        istringstream istr(v);

        //打印一行字符串v

        cout<<istr.str()<<endl;

        //打印每个单词

        while(istr>>tmp)

            cout<<tmp<<endl;

    }

    return ;

}