#include <iostream>
#include <fstream>
using namespace std;
ifstream f("atestat.in");
int main()
{
    prim=NULL;
    while(fin>>x)
    {
        p=new nod;
        p->info=x;
        s=s+x;
        p->urm=NULL;
        p->ant=NULL;
        if(prim==NULL)
        {
            prim=p;
            ultim=p;
        }
        else
        {
            ultim->urm=p;
            p->ant=ultim;
            ultim=p;
        }
    }
    p=ultim;
    while(p!=NULL)
    {
        cout<<p->info<<" ";
        p=p->ant;
    }
    q=new nod;
    q->info=s;
    q->urm=prim;
    q->ant=NULL;
    prim->and=q;
    prim=q;
    p=prim;
    while(p!=NULL)
    {
        cout<<p->info<<' ';
        p=p->urm;
    }
    return 0;
}