#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("date.in");
ofstream fout("date.out");
struct nod{
    int inf;
    nod *urm,*ant;
};
void adaugare(nod *&ultim,nod *&prim,int x)
{
    nod *p=new nod;
    p->inf=x;
    p->urm=NULL;
    if(prim==NULL)
    {
        p->ant=NULL;
        prim=ultim=p;
    }
    else
    {
        p->ant=ultim;
        ultim->urm=p;
        ultim=p;
    }
}
void creare(nod *&prim,nod *&ultim)
{
    int x;
    prim=NULL;
    while(fin>>x)
        adaugare(ultim,prim,x);
}
void afisare(nod *p)
{
    while(p!=NULL)
    {
        fout<<p->inf<<" ";
        p=p->urm;
    }
}

int main()
{
    nod *prim,*ultim;
    creare(prim,ultim);
    afisare(prim);



    return 0;
}