#!/usr/bin/python3

import sys

def num(x):
    if x >= '0' and x <= '9':
        return True
    else:
        return False

def numbers(x):
    temp = ''
    array = []
    for i in x:
            if num(i):
                temp = temp + i
            else:
                if temp != '':
                    array.append(temp)
                    temp = ''               
    return array

for line in sys.stdin:
    temp = numbers(line)
    if len(temp) != 0:
        print(' '.join(temp))