//
// This is example code from Chapter 11.7 "Using non-standard separators" of
// "Programming -- Principles and Practice Using C++" by Bjarne Stroustrup
//

#include <iostream>
#include <string>
#include <sstream>
#include <vector>

using namespace std;

//------------------------------------------------------------------------------

int main()
{
    string line;
    getline(cin,line);            // read into line
    for (int i=0; i<line.size(); ++i) // replace each punctuation character by a space 
        switch(line[i]) {
        case ';': case '.': case ',': case '?': case '!':
            line[i] = ' ';
    }

    stringstream ss(line);        // make an istream ss reading from line
    vector<string> vs;
    string word;
    while (ss>>word)            // read words without punctuation characters
        vs.push_back(word);
}

//------------------------------------------------------------------------------