#include<iostream>
#include<cstring>
using namespace std;
char s[103];
int main()
{
    int i,ls;
    cin.getline(s,100);
    ls=strlen(s);
    for(i=0;i<ls;i++)
    {
        if(s[i]=='.' || s[i]=='-') continue ;
        if(s[i]==',')
            cout<<" ";
        cout<<s[i];
    }
}