#include<iostream>
using namespace std;
struct NOD{
            int info;
            NOD* adr_urm;
          };
  NOD  *L[101],*c;
  int i,j,m,n,a,A[101];
int main()
{
    cout<<"n= ";cin>>n;
    cout<<"m= ";cin>>m;
    for(a=1;a<=m;a++)
    {
        cin>>i;
        cin>>j;
        //adaugam j la lista de adiacenta a lui i
        c=new(NOD);
        c->info=j;
        c->adr_urm=0;
        if(L[i]==0)
        {
            L[i]=c;
        }
        else
        {
            c->adr_urm=L[i];
            L[i]=c;
        }
        //adaugam i la lista de adiacenta a lui j
        c=new(NOD);
        c->info=i;
        c->adr_urm=0;
        if(L[j]==0)
        {
            L[j]=c;
        }
        else
        {
            c->adr_urm=L[j];
            L[j]=c;
        }
    }
    //afisam    listele de  adiacenta   alocate dinamic
    for(i=1;i<=n;i++)
    {
        cout<<"L["<<i<<"] = ";
        c=L[i];
        while(c!=0)
        {
            cout<<c->info<<" ";
            c=c->adr_urm;
        }
        cout<<"\n";
    }


    return 0;
}