#include <iostream>
#include <string>
#include <sstream>
#include <algorithm>
#include <cctype>
int main()
{
std::string line;
while (std::getline(std::cin, line))
{
line.erase(std::remove_if(line.begin(), line.end(),
[](char ch) { return !std::isdigit(ch) && !std::isspace(ch) && ch != '.'; }), line.end());
std::istringstream strm(line);
double oneValue;
while (strm >> oneValue)
std::cout << oneValue << " ";
}
}
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