#include <iostream>
#include <string>

int main()
{
    std::string str = "";

    std::getline(std::cin, str);

    for (int i = 0; i < str.length(); i++)
    {
        std::cout << str[i];
        int cnt = 0;
        while (str[i] == '.' && str[i + 1] == '.')
        {
            cnt++;
            if (cnt > 2)
                i++;
            else if (str[i] == '.')
                std::cout << str[i];
        }
    }

    std::cout << std::endl;

    return 0;
}