#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("a.in");
ofstream fout("a.out");

char c[105];

int main()
{
    cin.getline(c, 105);
    for(int i = 0 ; c[i] ; i++)
    {
        if(c[i] == '.' || c[i] == '-')
        {

        }
        else if(c[i] == ',')
        {
            cout << " ,";
        }
        else
            cout << c[i];
    }
}