#include <cstdio>

using namespace std;

char s [105];

int main () {
    char ch = 'A';
    int ok = 0, i;

   gets (s);
    for (i = 0; s [i]; i ++) {
        if (s [i] != '.' && s [i] != '-') {
            if (s [i] == ',')
                printf (" ");
            printf ("%c", s [i]);
            ch = s [i];
            ok = 1;
        }
    }
    return 0;
}