#include <iostream>
#include <fstream>
#include <cstring>

using namespace std;

ifstream fin("date.in");
ofstream fout("date.out");
char a[200];
char *p;
char b[200];

int main()
{
    fin.get( a , 200 );
    p = strchr( a , '-' );
    while( p )
    {
        if( a[ ( p - a - 1 ) ] != ' ')
        {
            strcpy( p , p+1 );
            p = strchr( a , '-' );
        }
        else
        {
            strcpy( a + ( p - a ) , p + 2);
            p = strchr(a, '-' );
        }
    }

    p = strchr( a , '.' );
    while(p)
    {
        strcpy( p , p+1 );
        p = strchr( a , '.' );
    }

    p = strchr( a , ',' );
    while(p)
    {
        strcpy( b , p );
        *p = ' ';
        strcpy( p + 1 , b );
        p = strchr( p+2 , ',' );
    }
    fout << a;
    return 0;
}