#include <iostream>
#include <iterator>
#include <vector>
#include <algorithm>
using namespace std;

int main() {
  vector<double> v;
  copy (istream_iterator<double>(cin), istream_iterator<double>(), back_insert_iterator<vector<double>>(v));
  sort(v.begin(),v.end());
  double sum = accumulate (v.begin(), v.end(), 0.0);
  cout << "sum=" << sum << endl;
  copy (v.begin(), v.end(), ostream_iterator<double>(cout, " "));
}