#include<cstdio>
#include<bitset>
#include<vector>
#include<cstring>
#include<cmath>
#include<cstdlib>
#include<ctime>
#include<map>
#include<set>
#include<queue>
#include<algorithm>

using namespace std;

int N;
char sir[1009];

int main()
{
//freopen ("input", "r", stdin);
//freopen ("output", "w", stdout);

gets (sir + 1), N = strlen (sir + 1);
for (int i=1; i<=N; i++)
{
    if (sir[i] == ',') printf (" ");
    if (sir[i] != '-' && sir[i] != '.') printf ("%c", sir[i]);
}

return 0;
}