#include <iostream>
#include <vector>
#include <string>
#include <iterator>
#include <algorithm>
 
 
int main() {
    std::vector<std::string> text;
    for (std::string line; std::getline(std::cin, line); text.push_back(line));
 
    std::cout << "Before:" << std::endl;
    std::copy(text.begin(), text.end(), std::ostream_iterator<std::string>(std::cout, "\n"));
 
    for (std::vector<std::string>::iterator it = text.begin(); it != text.end(); ++it) {
        std::replace_if(it->begin(), it->end(), ispunct, ' ');
    }
 
    std::cout << "After:" << std::endl;
    std::copy(text.begin(), text.end(), std::ostream_iterator<std::string>(std::cout, "\n"));
}
 

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