#include <iostream>
#include <string.h>
#define nmax 200
using namespace std;
char s[200],aux[200];
int main()
{int i,lg;
    while(cin.getline(s,nmax))
    {i=0;
    lg=strlen(s);
        i=0;
        while(i<lg)
        {
            if(s[i]==','){strcpy(aux,s+i);
                        strcpy(s+i+1,aux);
                        s[i]=' ';i+=2;lg++;
            }
                else i++;
        }
        i=0;
        while(i<lg)
        {
            if(s[i]=='.' || s[i]=='-')
            {strcpy(aux,s+i+1);
            strcpy(s+i,aux);
             lg--;

            }else i++;
        }

        cout<<s<<endl;
    }
}