#include <iostream>
#include <fstream>
#include <cstring>
using namespace std;
ifstream f("date.in");
ofstream g("date.out");
char aux[100], ch[300];

int main()
{   cin.getline(ch,300);
    for(int i=0;i<strlen(ch);i++)
    {   if(ch[i]=='.' || ch[i]=='-')
        strcpy(ch+i,ch+i+1);
        else if(ch[i]==',')
        {   strcpy(aux,ch+i);
            strcpy(ch+i," ");
            strcpy(ch+i+1,aux);
            i++;
        }
    }
    cout<<ch;
    return 0;
}