#    MTUOC_splitnumbers
#    Copyright (C) 2023  Antoni Oliver
#    v. 07/06/2023
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.

#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <https://www.gnu.org/licenses/>.


import re
import sys

def splitnumbers(segment,joiner="@@"):
    joiner=joiner+" "
    xifres = re.findall(re_num,segment)
    for xifra in xifres:
        xifrastr=str(xifra)
        xifrasplit=xifra.split()
        xifra2=joiner.join(xifra)
        segment=segment.replace(xifra,xifra2)
    return(segment)

re_num = re.compile(r'[\d,.\-/]+')
re_num_tl = re.compile(r'(([\d,.\-/]\s?)+)')


if __name__ == "__main__":
    for line in sys.stdin:
        line=line.rstrip()
        output=splitnumbers(line)
        print(output)