#include <iostream>
#include <cstring>
using namespace std;
char s[301], *p;///pointer la caractere=adresa la care se gaseste sirul s
char sep[]=" ,.!:?";
char cuv[101][301];///vector de cuvinte
int n;
int main()
{
    ///strtok(sir, sep)
    ///impartirea in cuvinte
    cin.getline(s,300);
    p=strtok(s,sep);///inlocuieste toti separatori  cu NULL
    while(p!=NULL)
    {
        ///cout<<p<<'\n';
        strcpy(cuv[++n],p);
        p=strtok(NULL,sep);///NULL sau  0
    }
    for(int i=1;i<=n;i++)
        cout<<cuv[i]<<'\n';
    return 0;
}